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Active jamming reconnaissance method suitable for mechanical scanning radar

A technology of mechanical scanning and active interference, used in radio wave measurement systems, instruments, etc., can solve problems such as inability to detect interference, and achieve the effect of breaking through limitations, high accuracy and improving reliability

Active Publication Date: 2018-06-26
XIDIAN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Due to the influence of its own system, traditional mechanical scanning radars usually add an auxiliary channel in addition to the main channel for interference detection and detection. There are often false pointing lines in the interference pointing lines detected by this method
Moreover, since the auxiliary channel and the main channel work at the same frequency point, it can only be detected when the interference and the main channel are at the same frequency point, otherwise the interference cannot be detected

Method used

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  • Active jamming reconnaissance method suitable for mechanical scanning radar
  • Active jamming reconnaissance method suitable for mechanical scanning radar
  • Active jamming reconnaissance method suitable for mechanical scanning radar

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Embodiment Construction

[0038] In order to conveniently explain the active interference detection method in the present invention and verify the effectiveness of the present invention, the present invention will be further described below in conjunction with specific embodiments and verification results.

[0039] refer to figure 1 , the implementation steps of the present invention are as follows:

[0040] Step 1: Obtain the echo data of the mechanical scanning radar.

[0041] (1a) Obtain the echo data m of the receiving channel of the main antenna and the echo data u of the receiving channel of the auxiliary antenna:

[0042] Receive the main antenna receiving channel echo data m and the auxiliary antenna receiving channel echo data u respectively according to the order of the radar transmitting pulses, where the main antenna receiving channel provides the echo information of the radar normal detection channel; the auxiliary antenna receiving channel gain It is between the main lobe gain and the f...

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Abstract

The invention discloses an active jamming reconnaissance method suitable for mechanical scanning radars, and mainly aims to solve the problem that the reconnaissance in the prior art is low in correctness and bad in reliability. The active jamming reconnaissance method is realized through the following steps: 1) acquiring echo data of a mechanical scanning radar; 2) determining a pulse team and a power value of a jamming echo in echo data of a jamming reconnaissance channel; 3) determining jamming intensities, jamming frequency points, jamming direction lines and jamming types by utilizing the echo data of the jamming reconnaissance channel; 4) eliminating the false direction lines in the step 3) by utilizing echo data of primary and secondary channels. According to the active jamming reconnaissance method, the correctness and reliability of the reconnaissance result are enhanced; corresponding anti-jamming measures can be adopted by utilizing reconnoitered related information of jamming sources, so that the anti-jamming ability of the radar is strengthened; the active jamming reconnaissance method can be used for mechanical scanning system radars.

Description

technical field [0001] The invention belongs to the field of radar signal processing, in particular to an active interference reconnaissance method, which can be used for mechanical scanning system radar. Background technique [0002] With the development of modern warfare and the increasing development and maturity of high-tech local warfare, the working environment of modern radar is becoming more and more complex, and the requirements for radar system performance are also constantly increasing. On the one hand, with the development of electronic technology and the continuous application of electronic technology in weapons and equipment, military and civilian electromagnetic wave equipment is used more and more frequently, and the frequency bands involved in equipment are also constantly widening, resulting in increasingly serious electromagnetic pollution in the radar working environment . On the other hand, in modern warfare, when the enemy and the enemy destroy each ot...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 何学辉翟小娟杨琨赵永波苏涛刘宏伟
Owner XIDIAN UNIV