该方法首先利用小波变换和主成分分析对故障信号进行预处理，然后用处理后的故障特征数据对小波神经网络进行训练和测试。
The method uses wavelet transform and principle component analysis to preprocess fault signal, afterward training and testing wavelet neural network with the preprocessed fault characteristic data.
介绍低光功率接收机在有线电视HF C网络中的应用，并对信号指标进行测试和比较，对经济效益进行分析。
Introduced the application of low optical power receiver to HFC network. Signal testing and economical benefit analyzing were presented at the same time.
当前，数字化技术及网络技术飞速发展，作为测试系统的源端，传感器输出大部分仍是模拟信号。
At present, digitization and network technology are developing rapidly. As the source end of testing system, the majority of sensor output is still analog signal.
研究领域包括信号检测、图像处理、人工神经网络、虚拟测试、DSP应用等。
His research fields include signal detection, image processing, artificial neural networks, virtual testing, DSP applications.
设计了一种适用于地面站微波测试系统中的信号传输开关网络。
A switch network for signal transmission test is designed which is suitable for microwave test system in ground station.
测试结果表明，该系统能够实现信号在网络中的正确传输，并可应用于数据采集、遥测等各个领域。
The experimental result demonstrates that signals can be transmit correctly, and the system can be applied in the information collection field, telemetry field and many other fields.
本文针对这些问题，以齿轮系统的振动信号为对象，研究了基于虚拟仪器的网络化测试平台。
So the networked platform based on virtual instrumentation is deeply researched for the vibration measurement and signal analysis in gearbox system.
本设计完成的网络测试系统主要由传感器、信号调理、数据采集、网络接口、显示以及通用计算机硬件和软件等基本要素组成。
This network testing system is mainly made up of basic elements such as sensors, data acquisitions, network interface, display, universal computer software and hardware, etc.
最后，模拟实际检测中不同缺陷信号的特征量作为网络输入，并对网络性能进行测试。
Finally, through the simulated working environment, the performance of the new neural network is tested with the different signal feature as input.
它可以同时测试语音、数据和视频信号的光功率值并给出判断，是PON网络工程、施工和维护的理想选择。
This power meter is able to simultaneously test and estimate the signals of the voice, data and video. It is an essential and ideal tool for the construction and maintenance of the PON projects.
典型的射频微波类测试仪表：信号源、频谱分析仪、网络分析仪、功率计、接收机等等；
Typical RF & uW instruments: signal generators, spectrum analyzers, network analyzers, power meters, receivers and so on;
熟练使用信号源、示波器、频谱仪、阻抗分析仪和网络分析仪等常用射频测试仪器进行测试、评估和调试；
Be practiced in using of the common RF test and analyzing instruments, such as Signal Generator, Oscilloscope, Spectrum Analyzer , Impedance Analyzer and Net Analyzer;
熟练使用信号源、示波器、频谱仪、阻抗分析仪和网络分析仪等常用射频测试仪器进行测试、评估和调试；
Be practiced in using of the common RF test and analyzing instruments, such as Signal Generator, Oscilloscope, Spectrum Analyzer , Impedance Analyzer and Net Analyzer;
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