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脉冲编码调制（PCM）用于在数字传输媒体上传送模拟信号，在PCM中，首先对模拟信号以高于其带宽两倍的奈奎斯特率进行采样，然后对所得样本进行量化。采用不同量化级别生成的PCM编码会影响接收器重建模拟信号的质量。 (Pulse code modulation (PCM) for the media in the digital transmission of analog signal transmission in the PCM, the first analog signal to more than the Nyquist rate of twice the bandwidth sample, and then to quantify the samples. Using different quantization level generated PCM coding receiver will affect the quality of the reconstruction of analog signals.)

三位梁单元的坐标转换，从单元的局部坐标转换为结构整体坐标(Three coordinate conversion beam element)

说明：  basic histogram equalization

此源代码,是一个非常适合研究与学习用的电力系统仿真软件源码，是一种基于mattlab的，有非常好的界面、仿真库等等，能进行PF、CPF、OPF等一些计算。 (This source code is a very suitable for research and study used in power system simulation software source code is a matlab-based, and has very nice interface, the simulation database and so on, can P )

Watermarking, as opposed to steganography, has an additional requirement of robustness against possible attacks. An ideal steganographic system would embed a large amount of information perfectly securely, with no visible degradation to the cover object.

给出了MATLAB语言实现IIR滤波器的实现，源文件中还有原理方法(MATLAB language are given the realization of IIR filters, there is the principle source document method)

matlab基于角点信息和透视变换的图像镶嵌 其中包括给定图片(matlab based on the corner of information and perspective transformation of the image mosaics including the given picture)

说明：  用四阶经典龙格库塔算法求解5阶细胞神经网络状态方程，得到5路超混沌序列。(With the fourth order classical Runge-Kutta algorithm for 5-order cellular neural network state equation, 5-way super-chaotic sequence are generated.)

NLSE by agrawal implemented in matlab stimulated raman Third harmonic generation SPM and GVD

myfft是一个自编matlab函数，将输入的采样频率个采样点数建立一个数据库后，取出表中的数据进行fft分析，绘制出时频波形进行比较分析(myfft self Matlab is a function of the input sampling frequency of 000 sampling points after the establishment of a database and extract table data fft analysis, time-frequency mapping out a comparative analysis of waveforms)