摘要
针对水下航行器被动声引信使用条件的特殊性,讨论了水下航行器被动声引信接收的目标辐射噪声波形特性和空间特性。计算了实测噪声数据的偏度、峰度、自相关函数和频谱,讨论了噪声的分布特性、时间相关性和频域特性。考虑换能器接收指向性和典型态势,建立了被动声引信目标辐射噪声的空间模型并进行仿真分析。计算和分析结果表明,水下航行器被动声引信接收到的目标辐射噪声为非高斯分布白噪声,空间特性是影响接收信号分布特性的重要因素。
The waveform characteristics and spatial characteristics of target radiation noise received by the passive acoustic fuze of underwater vehicle are discussed under its use conditions.The skewness and kurtosis,autocorrelation function and spectrum of measured noise are calculated,the distribution characteristics,time correlation characteristics and frequency domain characteristics are discussed.Considering the received beam of transducer and typical interception situation.The space model of passive acoustic fuze receiving target radiated noise is established and simulated.The results of calculation and analysis show that.The target radiated noise received by passive acoustic fuze of underwater vehicle is white noise with non Gaussian distribution,and the spatial characteristic is an important factor affecting the distribution of the received noise.
作者
张俊
杨进候
王明洲
胡友峰
ZHANG Jun;YANG Jin-hou;WANG Ming-zhou;HU You-feng(The 705 Research Institute of CSSC,Xi'an 710075,China)
出处
《舰船科学技术》
北大核心
2022年第4期60-65,共6页
Ship Science and Technology
关键词
被动声引信
水下航行器
波形特性
空间特性
passive acoustic fuze
underwater vehicle
waveform characteristics
spatial characteristics
