S229_Flyback_10a_1

数学实验中的最速落径问题 A,B是不在一条铅垂线上的两点，在链接A,B两点的所有光滑曲线中，找出一条曲线，使得初速度为零的质点，在重力的作用下，自A点下滑到B点所需的时间最短 (Mathematical experiment steepest drop Path problems A, B is not a vertical line of two points, the link A, B two points in all the smooth curve, to find a curve, the initial velocity of the particle is zero, gravity role, and since the point A to B points decline in the time required for the shortest)

这是包含我自己设计的一个低通滤波器和语音信号的处理，程序已经通过编译和仿真。(This is my own design with a low-pass filter and speech signal processing, compilation and simulation programs have been adopted.)

dsp convolutional_code FEC algorithm

层次分析法 在matlab中的应用 很好用 很强大 (AHP application in matlab good use very powerful)

0-1整数规划有很广泛的应用背景，比如指派问题，背包问题等等，实际上TSP问题也是一个0-1问题，当然这些问题都是NP问题，对于规模较大的问题用穷举法是没有办法在可接受的时间内求得最优解的，本程序只不过是一个练习，得意之处是用递归法把所有解都排列出来。另：胡运权所著的《运筹学基础及应用（第三版）》第97页的例3，我用本程序求解得到的结果是：最优解是x*=(1,0, 0, 0, 0)，最优值是f(x*)=8，但书求得最优解是x*=(1,0, 1, 0, 0)，最优值是f(x*)=4，是不是书中写错了，请大家验证。以下是源程序，大家可以任意使用无版权问题，另外，如果大家有大规模的0-1规划的问题也希望提供给我，谢谢。变量个数至少是3个(0-1 Integer Programming is a very broad background, such as assignment, bags and so on. actually TSP is a 0-1, of course, these problems are NP, for larger problem with the law is not exhaustive approach in an acceptable time frame to obtain the optimal solution. this procedure is only one practice, farewell tour is the method used recursive all of the solutions to show. Another : Hu Yun-author of "operational research, and application base (third edition)" Article 97 of the three cases, I use this procedure to solve the result is : is the optimal solution x = (1,0, 0, 0, 0), the optimal values of f (x*) = 8, but the book is to find the optimum solution x = (1,0, 1, 0, 0), the optimal values of f (x*) = 4, the book is not a mistake, please certification. Following is the source)

这个是用MATLAB中的SIMULINK做成的PCM编码器。(This is the MATLAB SIMULINK caused by the PCM encoder.)

有关可变码长LDPC编码电路的设计与实现的MATLAB编码程序的上传(LDPC Low Density Parity Check Code，LDPC)

JPEG 仿真 在Matlab7 上运行，效果最佳(The code of JPEG.If some one want using it,please download。)

合成孔径雷达的模糊与 PRF ；连续形式的回波模型 ； 抽样信号的频谱 ； 抽样形式的回波模型 ；方位模糊的仿真与抑制 (Fuzzy synthetic aperture radar and PRF continuous form of echo model sampling frequency spectrum sample form of echo model azimuth ambiguity suppression and Simulation)

课程设计，实现简单的计算器功能，希望多多交流(Curriculum design, simple calculator function, I hope more exchanges)