useful signal

Therefore, excluding the disturbance of noise and drawing the useful signal of traveling wave are the key of fault location.

因此，排除噪声干扰并提取有用的行波信号是精确测距的关键。

Bring upped the calculation methods on the valid useful signal, transition process influence time, ramp waveform influence time, zero time;

3提出了有效有用信号的确定，过渡过程影响时间的确定，斜阶跃影响时间的确定，零计时确定的方法，为不作影响因素改正，直接利用无影响的数据提供临界时间；

The characteristics of the wavelet coefficients of useful signal polluted by white noise are analyzed.

分析了白噪声污染的有用信号的小波变换系数特点.

The experiment results show that the temperature of grinding chips thermal flow is a useful signal source.

实验结果表明，磨屑热辐射流温度信号是较好的辨识砂轮磨钝的信号源。

The results of analysis show the error signals include the quadrature error and the error signals in phase with the useful signal.

分析结果表明，这些误差信号包含了正交耦合误差和与有用信号同相位的误差信号。

This method overcomes estimated level deviation of the noise for useful signal dominative layer using threshold denoising.

该方法克服了阈值估计法对有用信号起主导作用层噪声水平估计的较大偏差。

It is proved that stochastic resonance useful tool for weak signal extraction from strong noise.

实验证明了随机共振技术在强噪声背景下弱信号检测的优越性.

The wrasse's stripes may signal that it is a useful helper rather than a ready meal.

它身上的条纹可能暗示它是有用的帮手，而非一顿餐点。

The redundancies of weighted frames provide useful information for signal reconstruction and image procession.

由于加权框架具有良好的冗余性,从而为信号重构和图像处理提供了非常有用的信息.

Companding is a useful technique for improving the signal to noise ratio ( SNR) over poor radio channels.

压扩技术作为提高伟输信号信噪比的有效手段，在通信系统中得到了广泛应用。

Wavelet transform is a very useful tool of signal processing.

小波变换是用于信号多尺度表示的非常有用的工具.

In this article through analyzing the keystone of PCM digital interface transmitting telecontrol signal, then find out that digital telecontrol channel online test is RS-232 simple interface test. Thus tabling some simple and useful method of digital telecontrol channel online test.

文章通过对PCM数字接口传输远动信号的基本原理进行分析，找出对数字远动通道的测试就是RS-232简易接口的测试，从而有针对性的提出几种简单、实用的测试数字远动通道的方法。

Simulation result shows that by the method useful signal can be gotten primely from the noise background that is similar to the measured signal.

仿真结果表明利用这种方法能在和被测对象相似的噪声背景中很好地提取有用信号。

The results demonstrate that the method is useful for detecting of weak fault signal about cyclostationary.

表明希尔伯特谱对周期平稳类微弱故障信号具有一定的分析能力.