声学技术
聲學技術
성학기술
Technical Acousitics
2014年
6期
559-563
,共5页
被动声呐%信号检测%发展趋势
被動聲吶%信號檢測%髮展趨勢
피동성눌%신호검측%발전추세
passive sonar%signal detection%development trend
水声信号检测是被动声呐系统进行目标探测所需的重要支撑技术,信号检测的性能直接影响到被动声呐系统对目标探测的能力。对被动声呐信号检测技术的研究情况进行了梳理,将其归纳为基于时域信息的信号检测技术和基于空域信息的信号检测技术两大类。在分析现有技术不足和应用需求的基础上,指出弱信号、低虚警率和有效利用水声传播信息等是被动声呐信号检测技术可能的发展方向。
水聲信號檢測是被動聲吶繫統進行目標探測所需的重要支撐技術,信號檢測的性能直接影響到被動聲吶繫統對目標探測的能力。對被動聲吶信號檢測技術的研究情況進行瞭梳理,將其歸納為基于時域信息的信號檢測技術和基于空域信息的信號檢測技術兩大類。在分析現有技術不足和應用需求的基礎上,指齣弱信號、低虛警率和有效利用水聲傳播信息等是被動聲吶信號檢測技術可能的髮展方嚮。
수성신호검측시피동성눌계통진행목표탐측소수적중요지탱기술,신호검측적성능직접영향도피동성눌계통대목표탐측적능력。대피동성눌신호검측기술적연구정황진행료소리,장기귀납위기우시역신식적신호검측기술화기우공역신식적신호검측기술량대류。재분석현유기술불족화응용수구적기출상,지출약신호、저허경솔화유효이용수성전파신식등시피동성눌신호검측기술가능적발전방향。
Underwater signal detection is the important supporting technology for passive sonar system to monitor tar-gets, and the performance of signal detection directly affects the target detection capability of passive sonar system. This paper sort out the main techniques and achievements of passive sonar signal detection, which could be classified into two categories:the temporal information based signal detection technique and the spatial information based signal detection technique. Through the analyses of the existing problems and the application requirements, the potential de-veloping direction of passive sonar signal detection is pointed out, that is, weak signal detection, false alarm probability reduction, and effective use of underwater acoustic propagation information in signal detection.