一种猎雷声呐信号被动定向技术研究  

Research on Passive Acoustic Location in Mine-hunting Sonar

作　　者：赵冬艳 ZHAO Dongyan(No.710 R&D Institute,CSIC,Yichang 443000,China)

机构地区：[1]中国船舶重工集团有限公司第七一〇研究所,湖北宜昌443003

出　　处：《数字海洋与水下攻防》2021年第5期416-420,共5页Digital Ocean & Underwater Warfare

摘　　要：介绍了一种猎雷声呐脉冲信号被动定位的测向方法。反猎水雷采用被动声自导方式,利用猎雷声呐发射的窄带脉冲信号,采用自适应notch滤波器估计信号的包络、频率、相位差。采用时延差粗测与相位差精测相结合的方法实现时延估计。此方法不仅对CW脉冲信号可测向、测距,还可适用于调频、跳频信号。该方法已通过仿真及实测数据验证有效。This paper introduces a method of passive acoustic location for minehunting sonar.The anti-hunting mine adopts passive acoustic homing.,The adaptive notch filter is used to estimate the envelope,frequency,and phase difference of the narrowband pulse signal emitted by minehunting sonar.Time delay is estimated through coarse measurement of delay inequality and fine measurement of phase difference.The means above is feasible not only to CW pulses,but also to frequency modulated and frequency hopping signal.Simulation results and sea trials show this method is valid and viable.

关 键 词：猎雷声呐 时延估计 自适应notch滤波 被动声定位 水雷 

分 类 号：TJ430.1[兵器科学与技术—火炮、自动武器与弹药工程]