通过MATLAB软件；通过仿真得出性能曲线；从而比较bpsk的性能-The bit-error rate (BER) of binary phase-shift keying in Rayleigh fading, using the Alamouti transmission scheme and receiver selection diversity in the presence of channel-estimation error, is studied. Closed-

Finally it is observed that by using this filter, the common mode noise level of 2MHz resonant converter is suppressed according to CISPR 22 standard limits

The morphology operation to read the image and convert the rgb2gray, and convert in to the binaring the input image.Adding the binary noise to the image next the input image to make text in white and background in black. Next do the two operation d

谱减法和维纳滤波去除背景噪声的理论研究，很全面-Theoretical study spectral subtraction and Wiener filter to remove background noise , very comprehensive