声学技术
聲學技術
성학기술
Technical Acoustics
2015年
5期
395-398
,共4页
被动声呐系统%噪声干扰%噪声掩盖比%方位偏离度%噪声阻塞级
被動聲吶繫統%譟聲榦擾%譟聲掩蓋比%方位偏離度%譟聲阻塞級
피동성눌계통%조성간우%조성엄개비%방위편리도%조성조새급
passive sonar system%noise interference%the power ratio of signal and jammer%the error of estimated DOA%the block interference power
在从信号处理的角度,就干扰信号对被动声呐系统的目标信号检测、目标方位估计、接收系统饱和等方面的典型情况进行了仿真分析,定义了噪声掩盖比、方位偏离度、噪声阻塞级等参数,用以表征干扰信号对被动声呐系统的影响,并给出了典型的仿真结果.
在從信號處理的角度,就榦擾信號對被動聲吶繫統的目標信號檢測、目標方位估計、接收繫統飽和等方麵的典型情況進行瞭倣真分析,定義瞭譟聲掩蓋比、方位偏離度、譟聲阻塞級等參數,用以錶徵榦擾信號對被動聲吶繫統的影響,併給齣瞭典型的倣真結果.
재종신호처리적각도,취간우신호대피동성눌계통적목표신호검측、목표방위고계、접수계통포화등방면적전형정황진행료방진분석,정의료조성엄개비、방위편리도、조성조새급등삼수,용이표정간우신호대피동성눌계통적영향,병급출료전형적방진결과.
In the paper, several typical effects of noise interference on passive sonar system are analyzed via signal processing method, which concern the key procedures of underwater passive sonar system, such as signal detection, DOA (Direction Of Arrival) estimation and system saturation. Three indices are introduced to evaluate the noise interference effects including the power ratio of signal to jammer, the error of estimated DOA and the block interference power. Simulation results that demonstrate the effect are given.
