舰船辐射噪声信号的特征提取技术因其在水下装备中具有重要的应用价值，一直是国内外研究的热点和难点。
The technique of feature extraction of ship-radiated noise is of importance to underwater equipment, and it is a hotspot and difficult area in the national and international research.
最后结合辐射源信号检测和特征提取技术的研究，建立了复杂辐射源信号侦察处理技术系统模型。
Finally after the study on the emitter signal detection and feature extraction technology, the system model on complex emitter reconnaissance and processing technology was given.
大型电力变压器局部放电信号的特征提取是电气设备绝缘在线监测及故障诊断技术领域的前沿研究课题。
The feature extraction of partial discharge signal of transformer is the front research project in online monitoring and diagnosing high voltage insulation failure.
高分辨雷达回波信号处理和特征提取技术受到广泛的关注。
Signal processing and feature extraction of high-resolution radar echoes have received intensive attention in recent years.
信号脉内特征提取技术是雷达对抗系统分选、识别截获信号的关键技术。
Extracting of radar in-pulse characteristics is an important technology to sort and recognize intercept signal from the radar countermeasure systems.
本文首先简要地介绍了医学电子学中人体超声信号的检测、处理及其特征提取所采用的方法及其技术特点。
Here medical Electronic methods and techniques are mainly introduced to detect, analyse and extract feature for human medical ultrasound signals.
本论文主要研究采用多种特征提取方法对激光微多普勒信号进行时-频分析、多尺度分析和相关变换技术。
This paper includes studying many feature extraction methods such as time-frequency method, multi-resolution analysis and correlation analysis to analyze the Micro-Doppler signal.
采用上述数字信号处理技术分别对DSSS信号进行特征提取的仿真和验证，并给出了每种检测技术的性能及优缺点。
The digital signal processing techniques were used on the DSSS signal simulation and verification feature extraction. And the performance of each detection and advantages and disadvantages were given.
采用上述数字信号处理技术分别对DSSS信号进行特征提取的仿真和验证，并给出了每种检测技术的性能及优缺点。
The digital signal processing techniques were used on the DSSS signal simulation and verification feature extraction. And the performance of each detection and advantages and disadvantages were given.
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