In this paper a current differential relaying system using fiber-oPtic signal transmission channel is described.
本文研究提出了一种应用光纤通道的短距离输电线电流差动保护方案。
However, railway signal transmission channel is very bad, so the signal will inevitably be mixed with a variety of noise.
而轨道信号传输信道所在环境是非常恶劣的，因此不可避免会混入各种噪声。
Channel Encoding technology is one of the key technology in SSC. It aims to realize the non-error transmission of the signal.
信道编码是扩频通信的关键技术之一，是解决信号在信道中无差错传输的技术。
If the length of its cyclic prefix is larger than the delay spread of transmission channel, we can get a simple frequency equalizer to demodulate OFDM signal.
对于传统的OFDM系统来说，如果循环前缀的长度大于信道的时延扩散值，则可以通过简单的频域均衡来解调OF DM信号。
Due to satellite communication's long channel, far distance transmission and its wave through troposphere and ionosphere often brings the signal deamplification, noise and wrong code.
由于卫星通信信道长，传输距离远，电波要穿过对流层和电离层，易使信号衰减，引入噪声，造成误码。
As the signal is shifted from the original center frequency, the RF power analyzer reads lower and lower power levels as more and more of the signal shifts out of the intended transmission channel.
当信号从原中心频率偏移，信号越来越从设定的发射通道偏移，功率分析仪的功率电平会越来越低。
Error multiplication caused by channel noise in eletric transmission system can be demmonstrated by signal to noise ratio between error rate function curve.
误码率与归一化信噪化的函数曲线、可以表征在介质传输系统中，线路噪声所引起的误码增值。
But change of telemetering signal interval caused by channel noise will affect transmission accuracy of telemetering information when it is used to transmit telemetering signals.
雷达接收机信道对于信号检测是最佳系统，当用其传输遥测信号时，由于信道噪声的影响，使遥测信号码间距发生变化，从而影响遥测信息传输精度。
The weighting values are determined as a function of frequency based upon a state of a communication channel and the transmission mode of the signal.
所述权重值基于所述信号的通信信道状态和传输模式确定，所述权重值是频率的函数。
However, with the increase of transmission rate in a single channel, the quality of the signal would be more affected by dispersion, non-linear and so on.
随着单信道传输速率的提升，系统的色散、非线性效应等问题对信号的影响也更加严重。
According to the invention, original information is coded in a main channel and a sub channel to generate a signal for transmission, the sub channel being more robust with regard to channel effects.
为了产生要传输的信号，将原始信息编码成为主信道和副信道，其中副信道比主信道对信道干扰更具鲁棒性。
During the transmission of digital image, the signal may be blurred by the Point Spread Function (PSF) of the 2-dimensional channel.
数字图像在传输过程中，由于受到二维信道的点扩展函数(PSF)的影响，会产生图像模糊问题。
These algorithms are used during silence periods of speech to reduce ratio of transmission and improve ratio of use in signal channel. It's a best silence compression scheme for G. 729.
这些算法应用于语音中的静音期间以进一步降低传输速率和提高信道利用率，是为G.729研究的最佳静音压缩方案。
These algorithms are used during silence periods of speech to reduce ratio of transmission and improve ratio of use in signal channel. It's a best silence compression scheme for G. 729.
这些算法应用于语音中的静音期间以进一步降低传输速率和提高信道利用率，是为G.729研究的最佳静音压缩方案。
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