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Method for detecting, distinguishing and suppressing cross-eye jamming by single-pulse radar

A monopulse radar, cross-eye technology, applied in the field of detecting and suppressing cross-eye interference, to improve the ability of interference identification and counteract cross-eye interference

Active Publication Date: 2015-09-16
UNIT 63892 OF PLA
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  • Abstract
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  • Application Information

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Problems solved by technology

At present, no effective anti-electronic jamming measures for monopulse radar have been reported, which can detect and identify cross-eye interference, and effectively suppress the interference, such as the loss of contact of the aircraft

Method used

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  • Method for detecting, distinguishing and suppressing cross-eye jamming by single-pulse radar
  • Method for detecting, distinguishing and suppressing cross-eye jamming by single-pulse radar
  • Method for detecting, distinguishing and suppressing cross-eye jamming by single-pulse radar

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] figure 1It 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, and the aircraft 201 carries a cross-eye jammer (202, 203) in order to avoid the tracking of the ground radar, and conducts cross-eye jamming 103 on the ground radar , after being interfered, the monopulse radar outputs wrong angle information to drive the antenna to point far away from the real direction of the target, and point to the false target direction 301 . After a period of time, no echo signal is received in the false target direction 301, and the monopulse radar loses the target. At this time, the ground monopulse radar needs to adopt targeted signal processing to detect the existence of cross-eye interfer...

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Abstract

The invention belongs to the technical field of radar electronic countermeasures, and discloses a method for detecting, distinguishing and suppressing cross-eye jamming by a single-pulse radar. The method is characterized in that two types of angle measuring methods are started to carry out angle measurement again when the single-pulse radar is subjected to the cross-eye jamming and loses a target, whether the cross-eye jamming exists or not is detected through comparing the difference of measured angles acquired by the two types of angle measurements methods, and the cross-eye jamming is suppressed through a method of tracking a jamming source if the jamming exists. The method disclosed by the invention is mainly applied to detecting and suppressing the cross-eye jamming, and influences imposed on the direction finding performance of the single-pulse angle tracking radar by the jamming are eliminated. The method can also be applied to various single-pulse radars or signal detecting, recognizing and tracking devices, thereby quickly recognizing the cross-eye jamming, improving a jamming recognition ability of the system, and effectively resisting the cross-eye jamming.

Description

technical field [0001] The invention belongs to the technical field of radar electronic countermeasures, and provides a method for detecting, discriminating and suppressing cross-eye interference by monopulse radar, which is mainly used for detecting and suppressing cross-eye interference, and eliminating the influence of interference on the direction-finding performance of monopulse angle tracking radar . Background technique [0002] The basic function of radar is to detect the presence of electromagnetic scatterer radar targets and measure their position. 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 displaye...

Claims

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Application Information

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IPC IPC(8): G01S7/02G01S7/36
CPCG01S7/021G01S7/36
Inventor 戴幻尧孔德培候建洲王建路朱健东张晓芬刘文钊焦斌赵琳锋杨晴
Owner UNIT 63892 OF PLA
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