An new LFM detection algorithm based on ADTR-FrFT for active sonar system

被引：0
|
作者：
Zhang, Zhichen [1 ,2 ]
Wang, Haiyan [1 ,2 ]
Liu, Zhengguo [1 ,3 ]
Shen, Xiaohong [1 ,2 ]
Jiang, Zhe [1 ,2 ]
Jing, Haixia [1 ,2 ]
机构：
[1] Minist Ind & Informat Technol, Key Lab Ocean Acoust & Sensing, Xian, Shaanxi, Peoples R China
[2] Northwestern Polytech Univ, Sch Marine Sci & Technol, Xian, Shaanxi, Peoples R China
[3] China Shipbldg Ind Corp, Beijing, Peoples R China
来源：
2017 IEEE INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING, COMMUNICATIONS AND COMPUTING (ICSPCC) | 2017年
基金：
中国国家自然科学基金;
关键词：
underwater; time reversal; fractional Fourier transform; active sonar; detection; FRACTIONAL FOURIER-TRANSFORM; SIGNALS;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
As a detection signal LFM pulse is widely used in sonar system. FrFT is a new tool which has a dominant advantage to detect LFM-signal. However, under the multipath environment, the LFM signal is distortion on account of the non correlation superimposition of the multipath component, which results in performance degradation of the detector based on FrFT. In this paper, an improved algorithm based on Active Virtual time reversal and Fractional Fourier Transform is proposed. The results of the simulation indicate that comparing with FrFT the proposed method can enhance the signal power in the Fractional Fourier domain almost 2dB under 4 paths condition.
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收藏
页数：5
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