舰船电场阵列探测相干累加信号处理方法  

Coherent Cumulative Signal Processing Method for Ship Electric Field Array Detection

作　　者：谢昌奇 程锦房[1] 张伽伟[1] 喻鹏 XIE Changqi;CHENG Jinfang;ZHANG Jiawei;YU Peng(College of Weaponry Engineering,Naval University of Engineering,Wuhan 430033,China;Naval Petty Officer Academy,Bengbu 233012,China)

机构地区：[1]海军工程大学兵器工程学院,湖北武汉430033 [2]海军士官学校,安徽蚌埠233012

出　　处：《探测与控制学报》2022年第4期18-22,27,共6页Journal of Detection & Control

基　　金：国家自然科学基金青年基金项目(51509252)。

摘　　要：为了准确提取出海洋中微弱的舰船电场信号,提升对舰船电场的远距离探测能力,提出利用电场传感器阵列测量舰船电场,并运用相干累加来对阵列数据进行处理。该方法先用广义互相关法求出各路信号之间的时延,然后将时延补偿后进行累加。仿真和实测数据结果表明,该方法能够抑制噪声,提高电场信号的信噪比。In order to accurately extract the weak ship electric field signals in the ocean and improve the long-range detection capability of the ship electric field,an array of electric field sensors was used to measure the ship electric field,and coherent accumulation was applied to process the array data.The method first used the generalized cross correlation to find out the time delay between each signal,and then compensated the time delay for the accumulation.Simulation results and measured data showed that the method could suppress the noise and improved the signal-to-noise ratio of the electric field signal.

关 键 词：轴频电场 阵列信号处理 时延估计 相干累加 

分 类 号：TB559[理学—物理]