Single-pulse radar cross-eye interference detection method based on auxiliary channel

A monopulse radar, auxiliary channel technology, applied in radio wave measurement systems, instruments, etc., to achieve the effect of resisting cross-eye interference and improving the ability to identify interference

Pending Publication Date: 2019-03-08
UNIT 63892 OF PLA
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[0005] For reasons of secrecy, there have been

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  • Single-pulse radar cross-eye interference detection method based on auxiliary channel
  • Single-pulse radar cross-eye interference detection method based on auxiliary channel
  • Single-pulse radar cross-eye interference detection method based on auxiliary channel

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Embodiment Construction

[0097] The present invention will be further described below in conjunction with the accompanying drawings.

[0098] figure 1 It is the applicable scope, platform and application scenarios of the present invention. 101 in the figure is the electromagnetic signal 102 generated by the monopulse radar on the ground, searching and tracking an aircraft 201 in the air. In order to avoid the tracking of the ground radar, the aircraft 201 carries two source direction cross-eye jammers (202, 203) to cross the ground radar. Eye disturbance 204. Ground-based radars require targeted signal processing to detect the presence of cross-eye jamming. Another typical application scenario is shown in 301 equipment. The monopulse radar of 301 equipment emits electromagnetic signal 302 to track and guide the aircraft 201 in the air. In order to avoid the strike of 301 equipment, aircraft 201 uses cross-eye jammers (202, 203) to conduct cross-eye jamming 205 on 301 equipment. Equipping a radar s...

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Abstract

The invention belongs to the field of radar electronic countermeasure and discloses a single-pulse radar cross-eye interference detection method based on an auxiliary channel. Through angle measurement of one main channel and one auxiliary channel of the radar, when a single-pulse radar is subjected to cross-eye interference, whether cross-eye interference exists is detected through comparing theangle measurement results respectively obtained by the main channel and the auxiliary channel. The method is advantaged in that the method is mainly applied to early detection of cross-eye interference by the single-pulse radar, and then starts the corresponding technology to eliminate influence of interference on single-pulse direction finding performance, can be further applied to aircraft and various types of signal detection, identification and tracking devices, quickly identify cross-eye interference, improve system's interference identification capability and effectively combat cross-eyeinterference.

Description

technical field [0001] The invention belongs to the technical field of radar electronic countermeasures, and proposes a cross-eye interference detection method based on an auxiliary channel, which is mainly used for early detection of cross-eye interference by monopulse radar, and then activates corresponding technologies to eliminate the influence of interference on monopulse direction finding performance . Background technique [0002] The basic function of radar is to detect the presence and measure the position of electromagnetic scatterers - radar targets. In a typical radar, a transmitter generates electromagnetic pulses at a pulse repetition frequency, and the radar antenna radiates this energy through a fan beam or pencil beam. In most cases, the antenna used for transmission can also be used for signal reception. The received signal is converted from radio frequency to intermediate frequency, and after a series of amplification, filtering, etc., it is finally displ...

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Application Information

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IPC IPC(8): G01S7/02G01S7/36
CPCG01S7/021G01S7/36
Inventor 王海军戴幻尧申绪涧聂孝亮刘海业姚辉伟陈冬冬
Owner UNIT 63892 OF PLA
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