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一种新的匹配滤波器工程实现方法
引用本文:郝宗杰,张争气.一种新的匹配滤波器工程实现方法[J].电声技术,2009,33(5):45-47.
作者姓名:郝宗杰  张争气
作者单位:西北工业大学,航海学院,陕西,西安,710072
摘    要:在声呐信号处理中,为提高探测距离,可增加发射信号的长度,但这往往会超出FFT长度。利用强大的硬件平台,提出了一种新的水声信号处理中匹配滤波器的工程实现方法,即使用所有分段副本信号分别与回波信号进行匹配,选取最佳结果作为输出。仿真结果表明此方法可大大提高检测率。

关 键 词:频域处理  快速傅里叶变换  匹配滤波器

A New Method of Matched Filter Engineering Implementation
HAO Zong-jie,ZHANG Zheng-qi.A New Method of Matched Filter Engineering Implementation[J].Audio Engineering,2009,33(5):45-47.
Authors:HAO Zong-jie  ZHANG Zheng-qi
Affiliation:College of Marine;Northwestern Polytechnical University;Xi'an 710072;China
Abstract:In sonar signal processing,in order to improve the detection range,the length of emission signals can be increased,but it is often beyond the length of FFT.Traditional frequency domain matched filter uses all subsection of the copy signal with the echo signal to match one by one,but due to the randomness of the time when the target echo arrive,there will be error copy signals to match with echo signal,which will decrease the detection rate.Taking full advantage of powerful hardware platform,a new underwater...
Keywords:frequency-domain processing  FFT  matched filter  
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