grIsEulerian

桁架结构内力分析，动力响应分析。介绍了质量、刚度矩阵的产生(Truss structure, force analysis, dynamic response analysis. Describes the mass, stiffness matrix generation)

极坐标下的分贝画图。matlab中极坐标画图函数为polar，但是无法画出转化为dB的图形，此函数为画db为单位数据的极坐标图形。(Db drawing in polar coordinates . matlab polar coordinate drawing functions for the polar , but can not draw dB graphics , this function graphics for painting db data in polar coordinates .)

借助于MATLAB GUI模拟甚高频ACARS系统的下行数据链(The downlink data chain of the high frequency ACARS system is simulated with GUI MATLAB.)

说明：  DM500 Main scematic diagram

随机交织器的matlab实现：通过MC仿真的方法产生随机数(Matlab random interleaver implementation)

approximate the integral of exp(x)/(1+exp(x) )* N(m,ss)

说明：  有关于各式matlab的ga码，可以参考看看(Matlab-ga about the various types of code, can refer to see)

说明：  包括OFDM符号的加循环前缀，去循环前缀，加时延3个程序。(Including OFDM symbol cyclic prefix added to the cyclic prefix, plus 3 delay procedures.)

利用matlab将输入的rgb图像转化为灰度图像后，利用阈值求的二值图像，边缘算子求的边缘图像，边缘图像求归一化不变矩，Hu矩。(Matlab input rgb image to grayscale image, using the binary image threshold seeking child seeking the edge of the image, the edge operator, the edge of the image seeking normalized invariant moments, Hu moments.)

（7,4）汉明码译码性能程序，内含性能曲线图，包括未编码、硬判决、软判决、SPA迭代译码算法。((7,4) Hamming decoding performance program, containing the performance curves, including non coding, hard decision and soft decision, SPA iterative decoding algorithm.)