Missile-borne double-base forward-looking SAR receiving missile target identification and positioning method

A bistatic forward-looking and target recognition technology, applied in the field of bistatic synthetic aperture radar, can solve the problems of few related researches
CN112415513AActive Publication Date: 2021-02-26THE GENERAL DESIGNING INST OF HUBEI SPACE TECH ACAD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
THE GENERAL DESIGNING INST OF HUBEI SPACE TECH ACAD
Publication Date
2021-02-26

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Abstract

The invention relates to a missile-borne double-base forward-looking SAR receiving missile target identification and positioning method. A double-base forward-looking SAR downward-looking geodesic distance graph output by an imaging system of a missile-borne double-base forward-looking SAR is a real-time graph. The method comprises the following steps: selecting a plurality of landmarks, and obtaining position information of a target in the real-time graph based on a landmark matching method; establishing a trust degree matrix according to the target matching position information correspondingto the plurality of landmarks, and calculating the position information of the trust target; and positioning a receiving missile target according to the position information of the trusted target. According to the method, target identification and positioning can be carried out on the missile-borne bistatic forward-looking SAR image.
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Description

technical field

[0001] The invention relates to the technical field of bistatic synthetic aperture radar, in particular to a method for identifying and locating a target of a bomb-borne bistatic forward-looking SAR receiver. Background technique

[0002] At present, due to the separation of the transmitting and receiving platforms of the missile-borne bistatic SAR, it can provide azimuth Doppler high resolution by the launching missile to illuminate the target area, and the ability of the receiving missile to face the forward-looking imaging of the target area, so it can achieve high-resolution images of the target scene. Resolution of two-dimensional radar images for terminal guidance.

[0003] In related technologies, the high-resolution radar image in front of the target can be obtained by using the forward-looking imaging feature of the bistatic SAR receiving missile. How to use the image to identify the target and position the target is the key to the application of th...

Claims

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