【摘要】 电力网络的噪音环境是影响电力通信质量的重要因素之一,其频谱有l/f的特点和极强的自相关性。小波变换是处理信号的强有力的工具,恰当的小波选择可以将有色噪音白化。介绍了一种小波变换结合维纳滤波的消噪方法,通过对实测电力通信信号的处理,证实了该方法的可行性。更多还原

【Abstract】 Noise of power line is one of the important factors which affects the quality of PLC. Its PSD has the character of the 1/f process and the great autocorrelation. The Wavelet Transform is a powerful tool to process signals. The proper choice of wavelet function could turn non-white noise to white noise. The paper presents a Wavelet Transform -Wiener Filter denoising method of PLC. It is proved feasibility by processing actual signals.更多还原