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直接序列扩频通信系统仿真程序 生成的信息码的波形图 扩频码如图 PSK调制后的波形 解调后的波形 解扩并滤波后的波形 (The waveform in Figure PSK modulated waveforms direct sequence spread spectrum communication system simulation code information generated spreading code waveforms despreading and after filtering the demodulated)

基于VLC的室内二维定位代码，实现基于RSS的室内二维定位(Indoor two-dimensional positioning based on VLC codes, two-dimensional-based indoor positioning RSS)

1) 已知x=[1:15], y=[12 34 56 78 99 123 165 198 243 277 353 345 303 288 275], 用多项式进行拟合，给出拟合多项式，(所选拟合多项式阶数不同，拟合结果不同，请你选择适当的阶数进行拟合)，并绘出原始数据点、拟合曲线和95％置信区间（confidence bounds）的图形 . 2) 根据下面数学模型建立仿真模型，并在一个示波器中把它们的波形仿真出来。 (1) are known to x = [1:15], y = [12 34 56 78 99 123 165 198 243 277 353 345 303 288 275], with polynomial fitting, given the polynomial fitting, (the election order polynomial fitting different fitting results to differ, please select the appropriate order of fit), and draw original data points, fitting curve and 95 confidence interval (confidence bounds) graphics .2 ) In accordance with the following mathematical model for the establishment of simulation model, and in an oscilloscope waveform in their simulation out.)

有趣的matlab程序，让大家感受matlab的魅力(Interestingly matlab program, so that we feel the charm of matlab)

采用matlab实现正交频分复用技术，用于各种现代数字处理中。(Using matlab to achieve orthogonal frequency division multiplexing, for a variety of modern digital processing.)

In pattern recognition, the k-nearest neighbor algorithm (k-NN) is a method for classifying objects based on closest training examples in the feature space.

LDPC的完整c语言开发源程序代码，可以直接运行，没有错误，里面含有文件： construct_matrix.cpp decode.cpp encode.cpp Gaussian_channel.cpp generating_matrix.cpp get_matrix.cpp LDPC_main.c(LDPC complete c language source code, can be directly run, no errors, which contains documents: construct_matrix.cppdecode.cppencode.cppGaussian_channel.cppgenerating_matrix.cppget_matrix.cppLDPC_main.c)

LMS算法以及一些相关的改进算法，希望对大家有所帮助(it can use to lms)

雷达系统中用于计算起伏目标的检测概率，适用于Swerling III型目标。(The radar system used to calculate the undulation target detection probability, applies Swerling III target.)

说明：  三点最小覆盖圆法,给出三点坐标，可以求得其三点的最小覆盖圆的圆心坐标和半径(mincircle of three points)