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Method for improving VTS radar resolution

A resolution and radar technology, applied in the field of VTS systems, can solve problems such as limited radar hardware conditions, and achieve the effect of improving radar resolution, identification ability, and supervision

Active Publication Date: 2016-09-07
中船鹏力(南京)大气海洋信息系统有限公司 +3
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the resolution of most radars is limited by the hardware conditions of the radar itself. Under the background of limited hardware conditions, how to further improve the resolution of radars is a topic worthy of further study.

Method used

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  • Method for improving VTS radar resolution
  • Method for improving VTS radar resolution
  • Method for improving VTS radar resolution

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0041] Such as figure 1 As shown, a method for improving the resolution of a VTS radar preferably includes the following six steps.

[0042] Step 1, shielding the radar echoes of non-focused targets: firstly, the radar video (that is, the original radar signal) is subjected to signal processing, and then the radar echoes of non-focused targets in the radar video are preferably shielded by means of a shielding area. Masking is performed, thereby reducing the amount of computation in the following steps.

[0043] In this step, the non-focused objects are land or bridges, etc.

[0044] Step 2, finding and recording the positions of two close-range radar targets.

[0045] Two short-distance radar targets, that is, the template waveform distribution of two peaks sandwiching a trough, such as figure 2 shown.

[0046] For the...

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Abstract

The invention discloses a method for improving VTS radar resolution. The method mainly comprises a step of shielding a radar echo of a non-specially-focused target object; a step of carrying out position finding and recording on two close-range radar targets; a step of calculating amplitude difference between a wave crest and a wave valley; a step of amplifying wave crest amplitude; a step of carrying out pixel amplitude recalculation and substitution; and a step of setting a fixed threshold and the like. Through the method above, when the distance between the two targets is very close, the radar resolution is improved by amplifying the wave crest amplitude of the target object and through a method of filtering an adhesion part echo by utilizing the fixed threshold, so that limit of hardware of the radar itself can be broken through, target object identification capability is improved, and supervision intensity is improved. The method can be applied to the fields of vessel traffic supervision, custom anti-smuggling, coast guard warning, marine fishery and marine environmental protection and the like; and besides, the method has realistic significance in judging target threat level and ship moving posture and the like under a battle condition.

Description

technical field [0001] The invention relates to a method for a VTS system, in particular to a method for improving the resolution of a VTS radar. Background technique [0002] VTS system (Vessel Traffic Management System), mainly used in the field of ship supervision, consists of the following systems: radar signal processing subsystem, multi-source signal processor subsystem, traffic manager subsystem, database subsystem and CCTV, DF , VHF and other sensor subsystems. The radar signal processing subsystem plays a very important role in the entire VTS system. The main function of the radar signal processing subsystem is to process the original radar signal, radar video signal forwarding, spot aggregation, radar target tracking, etc. Radar signal is a very important means of supervision in the VTS system. It provides an intuitive and rapid means of law enforcement for traffic control personnel on duty. The information it provides to the traffic control system includes: radar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 宗成明田池邱志远孟宪宏柏晓锁冯海玉张玉敬周晓安朱耿成
Owner 中船鹏力(南京)大气海洋信息系统有限公司
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