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产生模拟信号的程序，是我自己写的，毕业设计的时候用到的(Procedures generate analog signals that I wrote it myself, when used in graduate design)

It gives optimal histogram. It has m files. Mainly it is a program of Matlab

VC＋＋环境下调用MATLAB程序实现数字信号处理的方法(VC environment MATLAB program called digital signal processing methods)

直接序列扩频系统（DS，Direct Sequence）又称为直接序列调制系统或伪噪声系统（PN 系统），简称为直扩系统，是目前应用较为广泛的一种扩展频谱系统。要传送的信息经伪随机序列编码后对载波进行调制。在发信端越冬用扩频序列去扩展信号的频谱，在收信端，用相同的扩频友序列进行解扩，将展宽的频谱扩展信号还原成原始信号。因为伪随机序列的速率远大于要传送信息的速率，所以受调信号的频谱宽度将远大于要传送信息的频谱宽度，帮称之为扩频(Direct sequence spread spectrum (DS, Direct Sequence) modulation system, also known as direct sequence or pseudo-noise system (PN system), referred to as direct expansion systems, is currently the more widely used as a spread spectrum system. To send the information encoded by the pseudo-random sequence of carrier modulation. End of winter in the letter to extend the signal with the spreading sequence of spectrum, in the end prepared to receive and use the same sequence spread spectrum despreading friends, broadening the spectrum to restore the original signal expansion signals. Because the rate of pseudo-random sequence is much larger than the rate of information to be sent, so the frequency spectrum by adjusting the width of the spectrum is much larger than the width of the information to be sent to help is called spread spectrum)

matlab file ...by using genetic algorithm

说明：  使用hough变换检测圆，程序说明详细，可以检测同心圆(Using the hough transform to detect circles, detailed description of the procedures, can detect the concentric circles)

Matlab程序 滤波器的设计 直接设计IIR滤波器(IIR filter design)

镜像延拓和一种自适应波形匹配法处理EMD中的端点效应。boundary_matchwave。BOUNDARY_CONDITIONS_EMD。(Mirror extension and an adaptive waveform matching method to deal with the end effect in EMD.)

希望对大家学习有所帮助，如果大家对此有什么看法，联系我 (Would like to help everyone to learn, what if everyone has this view, contact me)

gold码是通信系统中重要的加密方式之一(gold code is an important communication system, one of encryption methods)