Of Passive Sonar的意思|示意

This paper focuses on the research of the de-noising of the passive sonar based on the wavelet.

基于对反潜巡逻机布放被动声纳浮标阵的研究，对方形阵的布放建立了模型。

This paper focuses on the research of the system structure of the synthetic environment of the passive sonar and the modeling and simulation test of the underwater sound synthetic signal.

以水中运动目标为例，给出了水声环境下，合成信号、环境噪声、海洋声学的数学模型和合成环境系统仿真实验。

By studying the principle of hearing system in identification of sound signal, a method of feature extraction for passive sonar target based on critical band spectrum energy is proposed.

利用被动声纳目标辐射噪声特征主要集中在低频部分的特点，结合听觉系统识别声音信号的原理，提出了一种被动声纳目标临界频带频谱能量的特征提取方法。

The propeller shaft frequency is one of the important target recognition features for passive sonar.

螺旋桨轴频是被动声纳极其重要的目标识别特征之一。

Therefore, supergain hydrophone array, particularly the small-sized circular array, is very good for improving the detection performance of low frequency passive sonar.

由于超增益阵具有尺度小、空间增益高的特点，对于改进低频被动声纳的检测性能具有重要的意义。

The model of motive system is made in the light of measurements of target bearings, elevation and frequency by passive sonar.

首先以无源声呐对目标的方位角、俯仰角和频率测量为依据，建立动态系统模型。