| 多重子阵回波提取与检测方法 |
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| 引用本文： | 艾锐峰,蔡志明,幸高翔,虢应华.多重子阵回波提取与检测方法[J].武汉水运工程学院学报,2013(5):1017-1021. |
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| 作者姓名： | 艾锐峰 蔡志明 幸高翔 虢应华 |
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| 作者单位： | [1]海军工程大学电子工程学院,武汉430033 [2]中国白城兵器试验中心气象室,白城137001 |
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| 摘 要： | 针对主动声呐目标检测的问题,提出了一种先提取目标回波、再加以检测的方法.构造若干相互重叠的子阵,利用子阵的波束输出提取目标回波的时间序列；运用空时二维数学量度量提取序列与理想回波序列的差异,从而实现目标的检测.区别于传统相关接收、相干累加、滤波等方法,此种解析计算的方式无需混响与信号的统计特性.通过仿真数据与实验数据的处理证明了该方法的有效性.
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| 关 键 词： | 回波提取 目标检测 混响抑制 |
Extraction and Detection Method for Echo with Sub-arrays |
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| Authors: | AI Ruifeng CAI Zhiming XING Gaoxiang GUO Yinghua |
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| Institution: | 1.Electronic Engineering College, Naval University of Engineering, Wuhan 430033, China ; Meteorology Department, Baicheng Ordnance Test Center of China, Baicheng 137001, China;) |
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| Abstract: | This paper proposes a method for echo detection of active sonar,with the extraction of echo from receive data.Firstly,it constructs some lapping sub-arrays for beam-forming.Then,it calculates the time sequences of target from the output of sub-arrays.Thirdly,it designs functions to measure the difference between extracting sequences and ideal sequences,which will find out the targets.Unlike the traditional methods,it doesn＇t need to know the statistical properties of reverberation and signal.The analysis of data proves that the method is efficient. |
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| Keywords: | echo extraction target detection reverberation suppression |
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