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Ship target number automatic judgment method and system based on broadband radar HRRP

A technology for automatic judgment of the number of targets, applied to radio wave measurement systems, instruments, etc., can solve problems such as weak echoes, radar terminal display interface cannot be displayed, etc., and achieve the effect of improving work efficiency

Active Publication Date: 2020-06-12
中国人民解放军海军七〇一工厂
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Problems solved by technology

[0004] Due to the weak RCS (Radar Cross-Section, radar cross-section) echo of some ship targets, after data processing, they often cannot be displayed on the display interface of the radar terminal

Method used

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  • Ship target number automatic judgment method and system based on broadband radar HRRP
  • Ship target number automatic judgment method and system based on broadband radar HRRP
  • Ship target number automatic judgment method and system based on broadband radar HRRP

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Embodiment Construction

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0051] Such as figure 1 As shown, it is a method flowchart of an embodiment of a method for automatically judging the number of ship targets based on broadband radar HRRP disclosed by the present invention, and the method may include the following steps:

[0052] S101. Preprocessing the high-resolution range image to obtain a preprocessing result;

[0053] When it is necessary to automatically discriminate the number of ship targets, the high-resolution range...

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Abstract

The invention discloses a ship target number automatic judgment method and system based on broadband radar HRRP. The method comprises the steps of preprocessing a high-resolution range profile to obtain a preprocessing result; calculating a sea noise mean value based on the preprocessing result, judging whether the ship targets exist or not based on the preprocessing result, and if yes, determining the positions of the ship targets based on the preprocessing result and the sea noise mean value; and determining the relevance between the ship targets based on the ship target positions and the sea noise mean value, and determining the number and confidence of the ship targets based on the relevance between the ship targets. The method and the system can effectively and accurately carry out the automatic estimation of the number of targets according to the characteristics of the ship target high-resolution range profile, and can effectively improve the work efficiency of an operator.

Description

technical field [0001] The invention relates to the technical field of ship target discrimination, in particular to a method and system for automatically judging the number of ship targets based on broadband radar HRRP (High Resolution Range Profile, high resolution range profile). Background technique [0002] With the increase of the radar bandwidth, the distance resolution ability of the radar is enhanced. When the radar signal bandwidth is large enough, the distance resolution is much smaller than the size of the target. The equivalent scattering centers of the target are separated on the radar line of sight, and the target echo occupies the Multiple range cells, represented as images distributed along the radar line of sight. The undulations and peaks in the broadband radar echo reflect the distribution of the target's scattering characteristics along the line of sight, which is often called HRRP. [0003] HRRP is the projection of the target scattering center in the r...

Claims

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Application Information

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IPC IPC(8): G01S7/41
CPCG01S7/414G01S7/418
Inventor 魏存伟段发阶刘先康张朋飞刘安然任杰杨欧卢文良常丽娟罗军鉴福升李洁赵鹏鹏王泽众
Owner 中国人民解放军海军七〇一工厂
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