利用模拟电视视频和音频信号的无源雷达失配滤波技术

doi:10.3969/j.issn.1001-2400.2013.05.003

J4 ›› 2013, Vol. 40 ›› Issue (5): 15-19+85.doi: 10.3969/j.issn.1001-2400.2013.05.003

利用模拟电视视频和音频信号的无源雷达失配滤波技术

王海涛;王俊

(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:2012-05-15 出版日期:2013-10-20 发布日期:2013-11-27
通讯作者: 王海涛
作者简介:王海涛(1986-)，男，西安电子科技大学博士研究生，E-mail: haitao267@yahoo.com.cn．
基金资助:
国家863创新基金资助项目(2010AAJ144)

Analog TV visual and audio signal based mismatched filter for the passive radar

WANG Haitao;WANG Jun

(National Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an 710071， China)

Received:2012-05-15 Online:2013-10-20 Published:2013-11-27
Contact: WANG Haitao

摘要/Abstract

摘要：

针对基于模拟电视的无源雷达中，单独利用视频信号进行失配滤波会产生比较大的失配信噪比损失问题，提出一种基于模拟电视视频和音频信号综合失配滤波的方法．首先利用频谱综合将所选取的视频和音频信号的频谱综合到连续的频率范围之内，然后对综合以后的信号进行失配滤波．该方法不仅可以充分利用模拟电视的全部发射功率，同时仿真分析表明，在获得同样的峰值旁瓣比的情况下，该视频和音频信号综合失配信噪比损失要比单独利用视频信号的失配信噪比损失小很多．

关键词: 无源雷达, 模拟电视视频和音频信号, 模糊距离副瓣, 失配滤波

Abstract:

In an analog TV based passive radar, the mismatched filter for only visual signals will produce a high SNR loss. In this paper, a method for the mismatched filter for both visual and audio signals is proposed. First, the chosen frequency of the visual and audio signal is synthesized in a consecutive range of frequency, and then the mismatched filter for the synthesized signal is applied. This method can utilize all the power of analog TV. What's more, according to simulation results, it can be found that when the same peak sidelobe ratio is acquired, a much lower SNR loss can be acquired by the proposed mismatched filter based on visual and audio signals than the one based only on visual signals.

Key words: passive radar, analogue television visual and audio signal, , ambiguity range sidelobe, , mismatched filter

王海涛;王俊. 利用模拟电视视频和音频信号的无源雷达失配滤波技术[J]. J4, 2013, 40(5): 15-19+85.

WANG Haitao;WANG Jun. Analog TV visual and audio signal based mismatched filter for the passive radar[J]. J4, 2013, 40(5): 15-19+85.

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利用模拟电视视频和音频信号的无源雷达失配滤波技术

Analog TV visual and audio signal based mismatched filter for the passive radar

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