潮流计算matlab代码

信息科学与通信工程中卷积码的MATLAB程序的编写(Information Science and Communication Engineering in the convolutional code written MATLAB program)

arima的matlab实现 当年做数学建模时候有参考(the arima The matlab reference was on mathematical modeling)

Matlab编程基础 M文件编辑 脚本文件的编写 流程控制 控制命令 程序的向量化(Matlab Programming M file editing script file control command the preparation of process control procedures to quantify the)

说明：  floy 算法实现寻找最短路径问题,类似的还有迪克斯屈拉算法(floy algorithm to find the shortest path problem, there is a similar pull algorithm Dix ​ ​ Qu)

用matlab做的最小二乘法外推多项式拟合卫星周跳，可以学习。(Using matlab to do the least squares polynomial fitting extrapolation satellite cycle slips, you can learn.)

digital processing of the Mtech syllabus which was not found any ware

Fixed-point for functions of several variables (Function fixed_point_systems(x0, N) approximates the solution of a system of nonlinear equations F(x) = (f1(x), f2(x), ..., fn(x)) = 0 rewritten in the fixed-point form x = G(x) = (g1(x), g2(x), ..., gn(x)). This is done by the user at the bottom of the file. The sub-function G(x) has to be updated accordingly with the given system. The iteration scheme x(k+1) = G(x(k)) is implemented until condition |x(k)- x(k-1)| < tol is met, starting with an initial approxiamtion vector x0. If, after N iterations, the stopping criterion is not reached, a message concerning the iterated x s is displayed. the output consists of iterates of each variables x1, x2, ..., xn in each column. )

说明：  Levenberg-Marquardt算法code采用trustregion方法更新决策函数(Levenberg Marquardt algorithm code uses trustregia method to update decision function)

This M Code simulate the effects of clipping and filtering on PAPR PAPR reduction in OFDM-based wireless standard.Also the performance of BER versus SNR of original OFDM signals with PAPR reduction based on clipping and filtering schemes over AWGN channel is evaluated. The simplest and most widely used technique of PAPR reduction is to basically clip the part of signals that are outside the allowed region.Clipping methode introduces both in band distortion and out of band radiation into OFDM signals which degrades the performance including the BER and spectral efficiency.Filtering can reduce out of band radiation after clipping although it can not reduce in-band radiation distortion.However, clipping may cause some peak regrowth so that the signal after clipping and filtering will exceed the clipping level at some point.To reduce peak regrowth a repeated filtering and clipping operation can be used to obtain a desirable PAPR at a cost of computational complexity increase.

BPSK的Matlab简单仿真，得到理想情况下的误码曲线(BPSK仿真之matlab)