In this paper, the theory of wavelet transformation in signal noise reduction is introduced, together with the algorithm of signal decomposition and reconstruction.
介绍采用小波变换进行信号降噪的原理；利用小波分解和重构函数对轧机主传动轴应力和扭矩信号进行降噪处理。
Threshold extension and adaptive noise reduction technology means that noise is 50 dB down for an unmodulated 13.5-dbf stereo signal.
扩展和自适应阈值降噪技术手段，噪音是50分贝下降为未调制的13.5支援数据库立体声信号。
Aiming at the non-stationary character of signal noise of fiber optic gyro (FOG) in the stabilized platform, the signal model of FOG and some methods of noise reduction are analyzed and discussed.
针对陀螺稳定平台系统中光纤陀螺信号噪声的非平稳性特点，分析并讨论了光纤陀螺输出信号模型及常用陀螺信号滤波方法的优缺点。
All of these is a useful experiment for reduction noise of CCD, it will improve the signal to noise of CCD.
这是对抑制CCD的输出噪声进行的一次有益尝试，将对提高CCD输出信号的信噪比起到积极的促进作用。
A noise reduction algorithm used in speech signal processes which is referred to as LMS adaptive noise reduction, is also designed to reduce wide-band noise but improve signal to noise Ratio.
此外本文还设计一种语音信号自适应噪声消除算法，利用LMS自适应算法的特点抑制语音信号中的宽带噪声信号，提高信噪比。
The algorithm of local projective nonlinear noise reduction based on nonlinear dynamic system is more effective for noise reduction of chaotic signal and non-stationary signals.
基于动力系统模型的局部投影非线性降噪算法，对混沌信号和一大类非平稳信号具有明显的降噪效果。
Noise reduction in ECG signal is the foundation and precondition of the ECG signal analysis and distinguishing.
心电噪声抑制是心电信号分析、识别的基础和前提。
After noise reduction in the signal, using "wavelet packet-energy" to extract the characteristic vector and input them to the neural network for fault identification.
在对采集到的信号降噪后，利用“小波包-能量”法提取特征量，并将其输入到神经网络中进行故障识别。
Digital noise reduction technology can be used to improve the quality of previously recorded material or restore a signal to a precious state especially in music production in computer.
数字降噪技术可以用来改善录音节目的质量，尤其是在电脑音乐制作中。
This algorithm can overcome the deficiency of the conventional algorithms of noise reduction, which were only efficient for stationary environments and have large level of signal residual noise.
对此，本文研究了一种非平稳环境下基于小波变换的信号去噪算法。
The core of optical reshaping is a decision gate featuring signal extinction ratio enhancement and noise reduction.
信号整形的关键是光判决门，性能良好的判决门可以进一步提高信号的消光比、减小抖动。
Aiming at the noise reduction of vibration signal of a rotor polluted by violent pulse noise and other stochastic noise simultaneously, the method of denoising the signal is studied.
对受强脉冲随机噪声干扰转子振动信号的滤波方法进行了研究。
It can be used as adaptive control of video signal. These real-time processing system contain real-time noise reduction, realtime detection of moving targets, edge detection and others.
该噪声值可以用于视频降嗓器、运动目标检测和图像边缘检测等实时系统，对视频信号进行自适应处理。
In detail, there is reported on the achievable improvement of picture sharpness and signal-to-noise ratio as well as on the reduction of flicker effects and luminance-chrominance-interference.
本文还详细报导了图象尖锐度和信噪比，以及抑制闪烁效应和亮度色度串扰等方面可获得的改善。
By comparing the effect between pre-and post clutter reduction, the clutter reduction method increases the signal-to-noise ratio (SNR) of the radar images and improves the detection performance.
从比较结果可以看出，采用该方法抑制这类杂波的效果较明显，通过杂波抑制可以获得更好的图像质量。
Because of the reduction of the search range, the synchronous probability is greatly improved so that the wireless communication system can adapt to the condition of low signal-to-noise ratio.
由于搜索范围的减小，也大大提高了同步概率，使得无线通信系统能够适应低信噪比的情况。
Because of the reduction of the search range, the synchronous probability is greatly improved so that the wireless communication system can adapt to the condition of low signal-to-noise ratio.
由于搜索范围的减小，也大大提高了同步概率，使得无线通信系统能够适应低信噪比的情况。
应用推荐