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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

Active Publication Date: 2021-02-26
THE GENERAL DESIGNING INST OF HUBEI SPACE TECH ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The inventor found that in the prior art, there are few related researches on image post-processing, especially target recognition and positioning combined with missile-borne applications.

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

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Embodiment Construction

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0052] The embodiment of the present invention provides a missile-borne dual-base forward-looking SAR receiving missile target recognition and positioning method, which can perform target recognition and positioning on the missile-borne dual-base forward-looking SAR image.

[0053] Such as figure 1 As shown, the implementation steps of the m...

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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.

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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Application Information

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IPC IPC(8): G01S13/90G01S7/295G01S7/35
CPCG01S13/9058G01S13/9043G01S7/295G01S7/352
Inventor 罗雪平陈立峰陈术涛闫士杰蔡昔
Owner THE GENERAL DESIGNING INST OF HUBEI SPACE TECH ACAD
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