MIMO雷达中的CPCW设计及性能分析

系统仿真学报 ›› 2016, Vol. 28 ›› Issue (5): 1206-1212.

MIMO雷达中的CPCW设计及性能分析

申东¹, 李强¹, 刘昕², 周宇²

1.兰州交通大学电子与信息工程学院, 甘肃兰州 730070;
2.西安电子科技大学雷达信号处理国家重点实验室, 陕西西安 710071

收稿日期:2014-11-19 修回日期:2015-01-27 发布日期:2020-07-03
作者简介:申东(1980-),男,甘肃天水,博士,副教授,研究方向为MIMO雷达波形设计。
基金资助:
甘肃省科技计划(1308RJYA032);甘肃省高等学校科研项目(2014A-048);兰州交通大学校青年基金(2014007)

CPCW Design and Performance Analysis for MIMO Radar

Shen Dong¹, Li Qiang¹, Liu Xin², Zhou Yu²

1. School of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;
2. National Key Lab of Radar Signal Processing, Xidian University, Xi'an 710071, China

Received:2014-11-19 Revised:2015-01-27 Published:2020-07-03

摘要/Abstract

摘要： 基于混沌相位编码波形(chaotic phase coding waveform,CPCW)的良好相关性和随机性,提出了用CPCW提高多发多收(multiple-input multiple-output,MIMO)雷达目标检测性能的方法。通过对混沌序列的均匀量化、四相编码得到CPCW。比较4种CPCW的相关性,选取较长的Tent相位编码波形提高MIMO雷达的目标检测性能,特别是对相邻弱小目标的检测性能。同时,基于CPCW建立多脉冲压缩累积信号处理模型。该模型能够有效降低混沌波形的互相关和自相关旁瓣,提高MIMO雷达的目标检测性能,特别是对相邻弱小目标的检测性能。最后的仿真结果表明了该方法的有效性。

关键词: MIMO雷达, 混沌序列, 相位编码波形, 目标检测

Abstract: Based on the good correlation and random property of chaotic phase coding waveform (CPCW), a method is proposed to increase the target detection performance of multiple-input multiple-output (MIMO) radar with CPCW. CPCW can be generated by uniform quantifying and quadriphase coding for chaotic sequences. Comparing the correlation property of four kinds of CPCW, the longer Tent phase coding waveform is chosen to increase the target detection performance of MIMO radar, especially for the close small target. Meanwhile, signal processing model is built by CPCW, and multiple pulse compression accumulation can help to reduce the cross-correlation and auto-correlation sidelobes of chaotic waveforms effectively, and then the target detection performance of MIMO radar is increased, especially for the close small target. Simulation results show the proposed method effectiveness.

Key words: MIMO radar, chaotic sequences, phase coding waveforms, targets detection

中图分类号:

TN957.51

申东, 李强, 刘昕, 周宇. MIMO雷达中的CPCW设计及性能分析[J]. 系统仿真学报, 2016, 28(5): 1206-1212.

Shen Dong, Li Qiang, Liu Xin, Zhou Yu. CPCW Design and Performance Analysis for MIMO Radar[J]. Journal of System Simulation, 2016, 28(5): 1206-1212.

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