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Cross-eye interference countermeasure based on inverse monopulse

An anti-interference and cross-eye technology, applied in radio wave measurement systems, instruments, etc., can solve problems such as abnormal power ratio between sum signal and differential signal, tracking angle error data deviates from target angular position, etc., to achieve accurate tracking and measurement Corner, the effect of improving the ability to resist "cross-eyed" interference

Active Publication Date: 2022-07-22
SHANGHAI RADIO EQUIP RES INST
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Problems solved by technology

[0002] "Cross-eye" interference is to use the interfering echo signals released by the two channels, so that the echo signal is almost zero after being superimposed in the sum channel, and enhanced after being superimposed in the differential channel, so that the sum channel required for angle measurement The power ratio of the signal to the differential signal is abnormal, which eventually causes the tracking angle error data output by the single pulse amplitude ratio angle measurement to deviate from the target angular position

Method used

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  • Cross-eye interference countermeasure based on inverse monopulse
  • Cross-eye interference countermeasure based on inverse monopulse
  • Cross-eye interference countermeasure based on inverse monopulse

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Embodiment Construction

[0030] Attached to the following Figures 1 to 3 A method for countering cross-eye interference based on inverse monopulse proposed by the present invention will be further described in detail with the specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in a very simplified form and all use inaccurate scales, and are only used to facilitate and clearly assist the purpose of explaining the embodiments of the present invention. For the purpose, features and advantages of the present invention to be more clearly understood, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc. shown in the drawings in this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with the technology, and are not used to ...

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Abstract

The invention discloses a cross-eye interference countermeasure based on inverse monopulse, which is applied to a sum-difference three-channel radar, comprising: step S1, entering an anti-cross-eye interference mode; step S2, exchanging sum-difference monopulse angle measurement The sum signal and the difference signal, and the sum signal and the difference signal under the cross-eye interference situation are obtained; Step S3, the ratio of the difference signal and the sum signal under the cross-eye interference is obtained, and the tracking is obtained according to the ratio Error angle; step S4, tracking in the cross-eye mode. The method proposed by the invention can be implemented in the sum-difference three-channel radar system, so that the seeker of the sum-difference three-channel radar can continue to track accurately after the "cross-eye" interference. Improves the ability of the seeker of the Sum-difference three-channel radar to resist "cross-eye" interference. To achieve the purpose of accurate tracking and angle measurement of the sum-difference three-channel radar seeker after being interfered by the "cross-eye".

Description

technical field [0001] The invention relates to the technical field of radar electronic countermeasures, in particular to a cross-eye interference countermeasure method based on inverse monopulse. Background technique [0002] "Cross-eye" interference is to use the interfering echo signals released by the cross of two channels, so that the echo signals are almost zero after being superimposed in the sum channel, and enhanced after being superimposed in the difference channel, so that the sum channel required for angle measurement is increased. The power ratio of the signal to the difference signal is abnormal, which eventually leads to the deviation of the tracking angle error data from the single pulse ratio angle measurement output from the target angle position. [0003] Therefore, a cross-eye interference countermeasure based on inverse monopulse is proposed to solve the problem of how to accurately track and measure the angle of the sum-difference three-channel radar af...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/36
CPCG01S7/36
Inventor 李毓琦牟成虎陈铖夏礼诺李兴岐封淑青牟旭娜
Owner SHANGHAI RADIO EQUIP RES INST
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