A novel RHT-TBD approach for weak targets in HPRF radar

被引：1

作者：

Hongbo YU ^{[1
]}

Guohong WANG ^{[1
]}

Wei WU ^{[1
]}

Shuncheng TAN ^{[1
]}

机构：

[1] Institute of Information Fusion, Naval Aeronautical and Astronautical University

来源：

ScienceChina(InformationSciences) | 2016年 / 59卷 / 12期

基金：

中国国家自然科学基金;

关键词：

high pulse repetition frequency; weak targets; track-before-detect; randomized Hough transform; multiple hypothesis ranging; range ambiguity resolution;

D O I：

暂无

中图分类号：

TN957.51 [雷达信号检测处理];

学科分类号：

080904 ; 0810 ; 081001 ; 081002 ; 081105 ; 0825 ;

摘要：

A novel approach, which can handle ambiguous data from weak targets, is proposed within the randomized Hough transform track-before-detect(RHT-TBD) framework. The main idea is that, without the pre-detection and ambiguity resolution step at each time step, the ambiguous measurements are mapped by the multiple hypothesis ranging(MHR) procedure. In this way, all the information, based on the relativity in time and pulse repetition frequency(PRF) domains, can be gathered among different PRFs and integrated over time via a batch procedure. The final step is to perform the RHT with all the extended measurements, and the ambiguous data is unfolded while the detection decision is confirmed at the end of the processing chain.Unlike classic methods, the new approach resolves the problem of range ambiguity and detects the true track for targets. Finally, its application is illustrated to analyze and compare the performance between the proposed approach and the existing approach. Simulation results exhibit the effectiveness of this approach.

引用

页码：63 / 76

页数：14

共 11 条

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