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Standard SJ3207-89 of the Ministry of Machinery and Electronics Industry of the People's Republic of China
Terms related to radar countermeasures
Terms related to radar countermeasures1989-02-01 Issued
Implemented on 1989-03-01
Issued by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Standard of the Ministry of Machinery and Electronics Industry of the People's Republic of ChinaTerms related to radar countermeasures
1 Subject matter and scope of application
This standard specifies the terminology of radar countermeasures. SJ3207--89
This standard is applicable to the formulation of technical standards, preparation of technical documents, compilation and translation of professional manuals, teaching materials and books and periodicals for radar countermeasures.
2 General category
2.1 Electronic warfare (EW) The electromagnetic information struggle conducted by the hostile parties using radio electronic equipment or devices. Electronic warfare includes electronic countermeasures and electronic counter-countermeasures.
2.2 Electronic countermeasures electronic countermeasures all tactical and technical actions taken to detect the electromagnetic information of the enemy's radio electronic equipment and weaken or destroy its effectiveness.
2.3 Electronic opposition electronic counter-countermeasures all tactical and technical measures taken to ensure the effective use of electromagnetic information by our side under the condition that the enemy implements electronic countermeasures. bzxz.net
2.4 Radar countermeasures radar countermeasures all tactical and technical actions taken to detect the electromagnetic information of the enemy's radar equipment and weaken or destroy its effectiveness.
2.5 Electronic reconnaissance electronic reconnaissance technical actions to obtain electronic intelligence by using electronic equipment or equipment to intercept, analyze and identify the electromagnetic information of the enemy's radiation source and locate it.
2.6 Electronic warfare support measures electronic warfare support measures real-time reconnaissance to provide necessary intelligence to support our implementation of electronic jamming and other tactical actions. 2.7 Electronic intelligence electronic intelligence intelligence information of non-communication electronic equipment except nuclear radiation. 2.8 Electronic jamming Electronic jamming is a technical action that uses electronic equipment or devices to suppress and deceive enemy electronic equipment to hinder its effective use of the electromagnetic spectrum.
2.9 Electronic camouflage is a technical action that uses electromagnetic false moon marks or changes the real reflection characteristics of the target to confuse the enemy radar and make it misjudge. Approved by the Ministry of Machinery and Electronics Industry of the People's Republic of China on February 1, 1989 and implemented on March 1, 1989
2.10 Stealth
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Through reasonable shape design, or the use of coatings, composite materials and absorbing materials to reduce the effective radar reflection cross-sectional area of the target.
2.11 Anti-radiation missile (ABM) is a missile that uses enemy electromagnetic radiation as guidance information to destroy the radiation source. 2.12 Radar signal simulation radar signal simulation is a means of using electronic instruments (or computers) to realistically generate radar signals of various systems. 3 Radar reconnaissance and reception
3.1 Radar reconnaissance radarreconnaissance is a technical action to intercept, analyze and identify enemy radar signals and obtain information about radar performance, use and deployment.
3.2 Radar counter-reconnaissance radarcounter-reconnaissance is a technical and technological measure taken to prevent the enemy from obtaining information about our radar performance, use and deployment. 3.3 Radar intelligence reconnaissance radarintelligencereconnaissance is a technical action taken to obtain strategic intelligence such as its military situation and technological development through long-term interception, accurate recording and analysis of enemy radar signals.
3.4 Radar tactical reconnaissance radarartacticalreconnaissance is a technical action to provide information support for our tactical actions through real-time interception and analysis of enemy radar signals.
3.5 Radar warning radarwarning
is a technical action to intercept, analyze and identify threatening information and issue warnings through real-time interception of enemy radar signals. 3.6 Scattering reconnaissance scattering reconnaissance is a technical action to conduct long-range reconnaissance of radiation sources by using the forward or side scattering of electromagnetic waves in the troposphere. 3.7 Signal environment density signal environment density the number of signal pulses with a certain power flux emitted by each radiation source to the location of the reconnaissance equipment in a unit time.
s.8 Adaptable signal environment density adaptablesignal environment density the ability of the reconnaissance equipment to intercept and correctly process the average number of signal pulses per second. 3.9 Passive direction-finding passive direction-finding the method of determining the direction of a radiation source by using the signal emitted by the radiation source. 3.10 Search direction-finding seach direction-finding the method of using the reconnaissance antenna beam to search in space, find enemy radar signals and determine their arrival angles. 3.11 Non-search direction-finding the method of using the reconnaissance antenna beam to search in space, find enemy radar signals and determine their arrival angles without searching in space. —2
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3.12 Maximum-signal direction-finding maximum-signaldirection-finding In the search direction-finding, the signal is received in the main lobe, and the direction of the beam when the amplitude is the maximum is used to determine the direction of the radiation source.
3.13 Amplitude-comparisondirection-finding uses the adjacent cross-beams of the antenna to receive the same radar signal and compare the amplitudes to determine its arrival angle.
3.14 Equal-signal direction-finding uses the adjacent cross-beams of the antenna to receive the same radar signal and when the amplitudes are equal, the direction of the radiation source is determined by the equal-signal axis of the antenna.
3.15 Monopulse direction-finding uses two or more antennas to receive a single pulse of the signal and compares its amplitude or phase to determine the direction of the radiation source.
3.16 Interferometer direction-finding is a method of determining the direction of a radiation source by using the phase difference of the same signal reaching two or more separate antennas. 3.17 Sidelobe suppression is a technology that uses auxiliary antennas to suppress the sidelobe reception signal of a directional antenna. 3.18 Bearing slow-reliable research is a search method in which the rotation speed of the reconnaissance antenna is much smaller than the rotation speed of the radar antenna, while ensuring that the radar signal can be received within one rotation time of the reconnaissance antenna.
3.19 Bearing rapid-reliable research is a search method in which the rotation speed of the reconnaissance antenna is much larger than the rotation speed of the radar antenna, while ensuring that the radar signal can be received within one rotation time of the radar antenna.
3.20 Bearing probabilistic research is a search method in which the rotation speed of the reconnaissance antenna meets neither the conditions of bearing slow-reliable search nor the conditions of bearing rapid-reliable search.
passivelocation
3.21 Passive location
A method of determining the geographical location by using the signal emitted by the radiation source. 3.22 Crosslocation
A method of determining the geographical location by using the intersection of the direction lines using the reconnaissance equipment to measure the direction of the radar at two or more known points. 3.23 Time-of-arrivallocation A method of determining the geographical location by using the intersection of multiple curves or multiple hyperbolic surfaces using the reconnaissance equipment to measure the time difference of the arrival of the same radar pulse at multiple known points.24 Time-of-arrival direction-finding location A method of measuring the time difference of the arrival of the same pulse at two known points, and measuring the signal arrival angle at one of the points, and determining the radar's geographical location by the intersection of the direction line and the hyperbola. 3.25 Scanning frequency measurement A method in which a reconnaissance receiver performs a frequency search to find radar signals and determine their carrier frequencies. 3—
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3,26 Non-scanning frequency measurement A method in which a reconnaissance receiver does not perform a frequency search but can find radar signals and determine their carrier frequencies. 3.27 Synthetic frequency measurement A frequency measurement method that combines search frequency measurement and non-search frequency measurement and has the characteristics of both. 3.28 Frequency slow-reliable scanning A method of granting a request in which the frequency search period of the reconnaissance equipment is less than the width of the radar irradiation pulse group and can receive a sufficient number of pulses.
3.29 Frequency rapid-reliable scanning A search method in which the frequency search period of each reconnaissance device is less than the radar pulse width and meets the processing and display requirements.
3.30 Frequency probabilistic-scanning A search method in which the frequency search period of the reconnaissance device does not meet the conditions of either the frequency slow reliable search or the frequency fast reliable search.
3.31 Reconnaissance equation A mathematical equation that expresses the relationship between the reconnaissance range and the main characteristics of the detected radiation source and the reconnaissance equipment. The reconnaissance equation in free space is: Rmax=
P.Ger.Gr·ay
V. (4) 2.Prmin·LLr
Wherein, Rmax-maximum reconnaissance distance, m
Pt--radar transmitter output power, W, Gtr--radar antenna gain in the direction of the reconnaissance device, Gr--reconnaissance antenna gain in the direction of the radar, Prmin-reconnaissance receiver sensitivity
λ--radar signal wavelength, m,
y--polarization coefficient,
Lt--loss from radar transmitter to antenna, Lr--loss from reconnaissance antenna to receiver. 3.32 reconnaissance range The maximum effective distance at which reconnaissance equipment can normally detect radar. 3.33 bearing resolution The ability of reconnaissance equipment to distinguish two adjacent radars in terms of bearing. 3.34 frequency resolution The ability of reconnaissance equipment to distinguish two adjacent signals in terms of frequency. 3.35 Direction finding accuracy Direction finding accuracy The difference between the measured value and the true value of the radar direction. 3.36 Frequency measurement accuracy -4
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The difference between the measured value and the true value of the radar signal frequency. 3.37 Location accuracy The difference between the measured value and the true value of the radar geographical location. 3.38 Reconnaissance time The time required for the reconnaissance equipment to complete the interception and processing of the radar signal within the range of the effective distance. 3.39 Signal micro-acquisition probability Sjgnal intercept probability A. The ratio of the number of signal interception times to the number of irradiation times under the condition of a single radar irradiation for a certain number of times: B. The degree of reliable signal interception.
3.40 Bearing intercept probability Bearing intercept probability The ratio of the number of azimuth interception times to the number of irradiation times of the reconnaissance equipment under the condition of a single radar irradiation for a certain number of times. 3.41 Frequency intercept probability frequencyinterceptprobability The ratio of the number of times a reconnaissance receiver tunes to the frequency of the detected signal to the number of times it is illuminated by a single radar for a certain number of times.
3.42 Intercept time
Intercept time
The detection time required to ensure that the reconnaissance equipment reaches the specified intercept probability. 3.43 False alarm rate false alarm rate
The number of times the reconnaissance equipment misjudges noise or other interference signals as radar signals per unit time. 3.44 Reconnaissance system sensitivity reconnaissance systemssensitivity The minimum signal power flux reaching the reconnaissance antenna aperture under the condition of ensuring the normal operation of the reconnaissance equipment. 3.45 Warning time warningtime
The time required from the threat signal reaching the input end of the radar warning device to the issuance of the threat warning signal. 3.46 Warning range warningrange
The detection range of the warning device.
3.47 Warning airspace warningairspace
Azimuth and elevation range in which the warning equipment can effectively perform the specified warning task. 3.48 Reconnaissance receiver reconnaissance receiver a receiver that can receive and analyze various radar signals in a specified frequency band. 3.49 Search receiver swept receiver
A receiver that changes the working frequency according to a certain rule to intercept radar signals within the reconnaissance frequency band. 3.50 Image rejection receiver image rejection receiver a superheterodyne receiver using an image rejection mixer. 3.51 High IF receiver high IF receiver a superheterodyne receiver with a first intermediate frequency higher than the signal frequency. 3.52 Microscan receiver microscan receiver a receiver that uses linear frequency modulation and shrinking principles to achieve fast and reliable frequency search. Also known as compression receiver 3.53 Acoustic-grating receiver A receiver that uses the diffraction of surface acoustic waves by acoustic grating to realize spatial Fourie decay transformation for frequency measurement. -5-
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3.54 Acoustic-optical receiver A receiver that uses the diffraction of ultrasonic waves on laser beams to realize spatial Fourie decay transformation for frequency measurement. 3.55 Channelized receiver A receiver that uses adjacent filter groups to realize multi-channel instantaneous frequency measurement. 3.56 IFM receiver A receiver that uses delay line correlators to convert frequency information into phase information to realize instantaneous frequency measurement. 3.57 Radar warning receiver A receiver that can intercept radar information and issue warnings. 3.58 Tangential sensitivity On the oscilloscope, when the noise bottom on the signal pulse is tangent to the noise top outside the pulse (at the same level), the signal power at the receiver input is 4 Radar jamming and emission
4.1 Radar jamming radar jamming
Technical measures taken to disrupt the normal operation of the enemy radar and reduce its effectiveness. 4.2 Blanketing jamming Jamming Jammers emit powerful noise jamming power or a large number of passive jamming equipment to form interference. 4.3 Deception jamming The false echo signal generated by the radar jammer's transmission, forwarding or reflection through the jamming equipment causes the enemy to make a wrong judgment.
4.4 Dual-mode jamming dualmode jamming
Jamming technology with two modes, pulse and continuous, and both suppression and deception functions. 4.5 Continuous-wave jamming continuous-wave jamming Jamming formed by the jammer transmitting a single frequency signal without any modulation. 4.6 Pulse Jamming: The jammer emits a false pulse signal, which makes it difficult for the enemy radar to distinguish between real and fake targets. 4.7 Response Jamming: The jammer emits a jamming signal for each pulse it receives. 4.8 Repeater Jamming: The jammer receives a signal, modulates it with false information, and then transmits it.9 Transponder jamming is a fast-guided jamming that works in a replying state. 4.10 Adaptive jamming is a jamming that can automatically adjust the jamming parameters according to the jamming effect. 4.11 Support jamming
Jamming launched against enemy radars to cover our attack force, including long-range support jamming, close-range support jamming and accompanying jamming.
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4.12 Self-protection jamming is jamming launched to protect one's own safety using self-provided jamming equipment or devices. 4.13 Angle jamming
Deceptive jamming launched against the radar's angle measurement and tracking systems. 4.14 Range jamming
Deceptive jamming launched against the radar's distance measurement and distance tracking systems. 4.15 Velocity jamming
Deceptive jamming of radar speed measurement and speed tracking systems. 4.16 Noise jamming
Interference formed by directly using noise or by modulating the carrier signal with noise. Also known as clutter interference. 4.17 Noise AM jamming: Interference formed by modulating the carrier amplitude of the transmitter with noise. 4.18 Noise FM jamming: Interference formed by modulating the carrier frequency of the transmitter with noise. 4.19 Noise AM-FM jamming: Interference formed by simultaneously modulating the amplitude and frequency of the transmitter carrier with noise. 4.20 Noise PM jamming: Interference formed by modulating the carrier phase of the transmitter with noise. 4.21 Barrage jamming: Suppressive jamming with a bandwidth much larger than the radar's operating bandwidth and capable of simultaneously jamming all radars in the band. 4.22 Spot jamming
Narrowband suppressive jamming aimed at the radar carrier frequency. 4.23 Swept jamming
The jamming carrier frequency is swept in a certain way within the specified frequency range. 4.24 Complex modulated jamming complex modulatediamming The jamming transmitter carrier is modulated with multiple different waveform signals at the same time. 4.25 Cross polarization jamming crossed polarization jamming The jamming method in which the polarization direction is orthogonal to the main polarization of the radar antenna. 4.26 Bliking jamming
The jamming of the radar by multiple jammers in the same azimuth resolution unit of the radar. 4.27 Range gate deception The jammer emits a false national standard echo to induce the radar's range gate to track it, thereby causing the radar to lose the real target distance. Also known as range gate drag jamming. 4.28 Velocity gate deception The jammer emits a false Doppler frequency shift signal to induce the radar's velocity gate to track it, thereby causing the radar to lose the real target speed information. It is also called velocity gate drag jamming. 4.29 Inverse gain jamming Inverse gain jamming The jammer's transmission power is inversely proportional to the modulation amplitude of the received radar signal. 4.30 Inverse conical scan jamming The jammer's modulation envelope is inversely proportional to the radar's cone scan error signal. 4.31 Burn through range The maximum distance at which the radar can still correctly detect the target through the jamming when it is subject to active suppression jamming. It is also called the radar's self-defense range.
4.32 Minimum jamming range The minimum distance at which the jammer can implement effective suppression jamming. 4.33 Maximum jamming range The maximum distance at which the jammer can implement effective jamming is determined according to tactical requirements. 4.34 Jam-to-signal ratio The ratio of the jamming signal power to the echo signal power measured simultaneously at any point in the radar system. Abbreviated as jamming-to-signal ratio. 4.35 Blanketing factor The minimum jamming signal ratio required at the input of the radar receiver when the jamming signal effectively suppresses the radar.
4.36 Direction time Direction time
The time it takes for the jamming system to detect the radar signal and complete the direction and frequency aiming. 4.37 Jamming bandwidth The frequency range covered by the jamming signal instantaneously. 4.38 Jamming equation
The equation that reflects the spatial energy relationship between the radar, the target and the jammer under effective jamming conditions. PiG,≥KL.PGro.Afi. R
,4 yuan GtAfr·R
Where: P-the power transmitted by the jammer, W
G, the gain of the jammer antenna,
P. The power transmitted by the radar, W,
G.-the gain of the radar transmitting antenna,
Gu-the gain of the radar antenna in the direction of the jammer, K,-the interference suppression coefficient
r\interference polarization coefficient,
R,-the distance of the jammer from the radar, m, R,-the distance of the target from the radar, m
△f in the jamming bandwidth, Hz,
Afr\radar receiver bandwidth, Hz
α---the effective reflection area of the target, m.
4.39 jamming sector
The sector-shaped bright area formed by the jamming signal on the radar annular display. 8
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4.40 Jamming strength
The degree of interference to the radar is usually divided into three levels: mild interference, medium interference and severe interference. 4.41 Blanketing zone
Under the condition of blanketing and jamming, the radar cannot normally detect the spatial range of the target. 4.42 Exposed zone
Under the condition of blanketing and jamming, the radar can still detect the spatial range of the target. 4.43 Power management
Under computer control, the jamming equipment implements effective jamming power control technology on multiple threat targets with accurate direction, frequency and time and the best jamming style. 4.44 Oscillator jamming transmitter A jamming transmitter using a high-power RF oscillator. 4.45 Master oscillator-amplifier jamming transmitter A jamming transmitter composed of a master oscillator and a multi-stage amplifier. 4.46 Multibeam jammer Multibeam jamming is a jammer that uses a multibeam antenna and emits jamming signals in different directions in an electronically controlled manner. 5 Passive jamming and optoelectronic countermeasures
5.1 Passive jamming
Any technology that uses equipment that does not radiate electromagnetic waves to reduce useful radar information by reflecting, absorbing or refracting electromagnetic waves.
5.2 Jamming material
A general term for passive reflectors, absorbers and refractors that are sensitive to radar radiation. 5.3 Chaff
A metal wire strip or a metal-coated dielectric wire strip with a certain length that can float in the air to produce chaotic scattering 5.4 Chaff package A certain number of chaff packaging units with one or more different lengths are contained. 5.5 Chaff burst
A scatterer formed by a single jamming package spreading in the air. 5.6 Jamming cloud
A scatterer formed by a large number of jamming clouds in the air. 5.7 Jamming shell
A shell specially used to drop jamming objects.
5.8 Jamming corridor
A narrow space formed by many connected jamming clouds with a certain stretch. 5.9 Jamming rocket
A rocket specially used to drop jamming objects.
5.10 Chaff screen
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An electromagnetic barrier formed by a large number of jammers spread in space, which prevents the target from being detected through it. 5.11 Corner reflector A reflector composed of two or three mutually perpendicular conductive planes. 5.12 Reflective balloon A balloon with a metal dipole or metal film on the surface. 5.13 Decoy
A passive reflector used to generate false target information to deceive or confuse the radar. 5.14 Radar decoy
A false target that lures the tracking radar away from the real target. 5.15 Chaff dispenser A device used to dispense jammers, which is generally divided into three types: electromechanical, pneumatic and detonation. 5.16 Transition Jamming is a combined jamming method that transfers the radar tracking gate from the real target to the passive false target through active drag jamming.
5.17 Centroid Jamming is a jamming method that sets a false target in the radar angle resolution unit near the target, so that the radar tracking moves from the real target to the equivalent energy center formed by the real and false targets to ensure that the real target is outside the enemy's effective killing radius. 5.18 Weakening Jamming is a jamming method that sets multiple false targets outside the radar angle resolution unit around the target to reduce the probability of tracking radar capturing the real target.
5.19 Complex Jamming
A jammer aims at the jamming cloud or group to release jamming, so that the active jamming and passive jamming are organically combined to enhance the jamming effect.
5.20 Bounce Jamming
A jammer is aimed at the ground, the sea or any nearby flat reflective surface to emit jamming signals, so that the reflected and directly arriving multipath jamming signals are mutually related. 5.21 Electro-optical countermeasuresElectronic countermeasures implemented against the enemy's optoelectronic equipment. 5.22 Electro-optical reconnaissanceElectro-optical reconnaissance is the reconnaissance of infrared, laser radar and other optoelectronic equipment. 5.23 Electro-optical jammingInterference with infrared, laser radar and other optoelectronic equipment, including passive and active electro-optical jamming. 5.24 Electro-optical active jammingElectro-optical active jamming is a technical action to suppress and deceive the effectiveness of enemy infrared, laser radar and other optoelectronic equipment by transmitting jamming signals through optoelectronic jamming equipment.
5.25 Electrooptical passive jamming Technology that uses equipment that does not generate photoelectric radiation to reduce the useful information of infrared and laser radar by reflecting, absorbing or scattering infrared rays and lasers. 5.26 Infrared decoy infrared decoy
Infrared false targets that lure infrared detection devices or infrared guided weapons away from the real targets, commonly used electro-optical bombs. 5.27 Laser decoy laser decoy
Laser false targets that lure laser radar or laser detection and guidance weapons away from the real targets. 5.28 Infrared detector infrared detector Reconnaissance device that detects and obtains relevant parameters of infrared radiation sources. 5.29 Laser detector lasercetector
Reconnaissance device that detects and obtains relevant parameters of laser radiation sources. 5.30 Smoke bomb aerosol shell
A bomb filled with combustible smoke powder material to reduce the visibility of laser radar. 5.31 Electro-optical stealth technology electrooptical stealth technology A method of reducing the effective radar reflection area of the target through reasonable shape design, material selection and coating of infrared and laser materials.
6 Antennas and microwaves
6.1 Corrugated horn antenna corrugate horn antenna An ultra-wideband, low sidelobe horn antenna with a corrugated inner wall. 6.2 Orthogonal polarization antenna guadrature polarization antenna An antenna with orthogonal linear polarization (or orthogonal circular polarization). 6.3 Multimode antenna arrays multimode antenna arrays Using special network feeding, it has a wideband direction-finding antenna array that works in linear phase multimode mode. 6.4 Digital phase-discriminate direction-finding antenna digital bearing discriminate antenna Using Butler matrix feeding, it uses digital phase-discriminate direction-finding technology and has a linear phase multimode antenna array, referred to as DBD antenna.
6.5 Multi-beam antenna arrays are broadband high-gain array antennas that use dielectric lens feeding to simultaneously form multiple independent beams in space. 6.6 Helical antenna
An ultra-wideband antenna that uses the helical diameter, pitch and number of turns related to its wavelength to provide antenna polarization and directivity control. It includes three types: conical helix, cylindrical helix and planar helix. 6.7 Changing polarization feed A device that changes the polarization form by changing the radiator feed. 6.8 Multi-channel rotary joint A device that realizes multi-channel microwave signal transmission between the rotating part and the fixed part when the antenna is mechanically scanned. 6.9 Polarization selector A device that only allows polarized waves in a certain direction to pass through, but does not allow polarized waves orthogonal to pass through. 6.10 Frequency splitter multiplexer24 Electrooptical active jamming Electrooptical active jamming Technical action to suppress and deceive the effectiveness of enemy optoelectronic equipment such as infrared and laser radar by transmitting jamming signals through optoelectronic jamming equipment.
5.25 Electrooptical passive jamming Technology that uses equipment that does not generate optoelectronic radiation to reduce the useful information of infrared and laser radar by reflecting, absorbing or scattering infrared rays and lasers. 5.26 Infrared decoy infrared decoy Infrared false targets and commonly used electro-optical bombs that lure infrared detection devices or infrared guided weapons away from the real target. 5.27 Laser decoy laser decoy Laser false targets that lure laser radar or laser detection and guidance weapons away from the real target. 5.28 Infrared detector infrared detector Reconnaissance device that detects and obtains relevant parameters of infrared radiation sources. 5.29 Laser detector lasercetector
Reconnaissance device for detecting and obtaining relevant parameters of laser radiation source. 5.30 Aerosol shell aerosol shell
A bomb filled with combustible smoke powder material to reduce the visibility of laser radar. 5.31 Electro-optical stealth technology electrooptical stealth technology A method of reducing the effective radar reflection area of the target through reasonable shape design, material selection and coating of infrared and laser materials.
6 Antennas and microwaves
6.1 Corrugated horn antenna corrugate horn antenna An ultra-wideband, low sidelobe horn antenna with corrugated inner wall. 6.2 Orthogonal polarization antenna guadrature polarization antenna Antenna with orthogonal linear polarization (or orthogonal circular polarization) mode. 6.3 Multimode antenna array multimode antenna arrays A broadband direction-finding antenna array with linear phase multimode operation, fed by a special network. 6.4 Digital bearing discriminate antenna digital bearing discriminate antenna is a linear phase multimode antenna array using Butler matrix feeding and digital bearing discriminant direction finding technology, referred to as DBD antenna.
6.5 Multibeam antenna arrays are broadband high-gain array antennas that use dielectric lens feeding to form multiple independent beams in space at the same time. 6.6 Helical antenna helical antenna
Ultra-wideband antenna that uses the helical diameter, pitch and number of turns related to its wavelength to provide antenna polarization and directivity control. Including conical helix, cylindrical helix and planar helix. 6.7 Changing polarization feed changing polarization feed device that changes the polarization form by changing the radiator feed. 6.8 Multichannel rotary joint multichannel rotary joint device that realizes multi-channel microwave signal transmission between the rotating part and the fixed part when the antenna is mechanically scanned. 6.9 Polarization selector polarization selector device that only allows polarized waves in a certain direction to pass through, but does not allow polarized waves orthogonal to pass through. 6.10 Frequency splitter multiplexer24 Electrooptical active jamming Electrooptical active jamming Technical action to suppress and deceive the effectiveness of enemy optoelectronic equipment such as infrared and laser radar by transmitting jamming signals through optoelectronic jamming equipment.
5.25 Electrooptical passive jamming Technology that uses equipment that does not generate optoelectronic radiation to reduce the useful information of infrared and laser radar by reflecting, absorbing or scattering infrared rays and lasers. 5.26 Infrared decoy infrared decoy Infrared false targets and commonly used electro-optical bombs that lure infrared detection devices or infrared guided weapons away from the real target. 5.27 Laser decoy laser decoy Laser false targets that lure laser radar or laser detection and guidance weapons away from the real target. 5.28 Infrared detector infrared detector Reconnaissance device that detects and obtains relevant parameters of infrared radiation sources. 5.29 Laser detector lasercetector
Reconnaissance device for detecting and obtaining relevant parameters of laser radiation source. 5.30 Aerosol shell aerosol shell
A bomb filled with combustible smoke powder material to reduce the visibility of laser radar. 5.31 Electro-optical stealth technology electrooptical stealth technology A method of reducing the effective radar reflection area of the target through reasonable shape design, material selection and coating of infrared and laser materials.
6 Antennas and microwaves
6.1 Corrugated horn antenna corrugate horn antenna An ultra-wideband, low sidelobe horn antenna with corrugated inner wall. 6.2 Orthogonal polarization antenna guadrature polarization antenna Antenna with orthogonal linear polarization (or orthogonal circular polarization) mode. 6.3 Multimode antenna array multimode antenna arrays A broadband direction-finding antenna array with linear phase multimode operation, fed by a special network. 6.4 Digital bearing discriminate antenna digital bearing discriminate antenna is a linear phase multimode antenna array using Butler matrix feeding and digital bearing discriminant direction finding technology, referred to as DBD antenna.
6.5 Multibeam antenna arrays are broadband high-gain array antennas that use dielectric lens feeding to form multiple independent beams in space at the same time. 6.6 Helical antenna helical antenna
Ultra-wideband antenna that uses the helical diameter, pitch and number of turns related to its wavelength to provide antenna polarization and directivity control. Including conical helix, cylindrical helix and planar helix. 6.7 Changing polarization feed changing polarization feed device that changes the polarization form by changing the radiator feed. 6.8 Multichannel rotary joint multichannel rotary joint device that realizes multi-channel microwave signal transmission between the rotating part and the fixed part when the antenna is mechanically scanned. 6.9 Polarization selector polarization selector device that only allows polarized waves in a certain direction to pass through, but does not allow polarized waves orthogonal to pass through. 6.10 Frequency splitter multiplexer
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