nonlinear-function-fitting-BP

it is a spectrum analysis code

用VC++和MATLAB的混合编程可以实现很多强大的功能，本例即是其中用MATLAB引擎实现的方法之一(With VC++ And MATLAB programming can be a mixture of many powerful features, that is, in this case is one of MATLAB engine using one of the ways to realize)

shi te zheng pailei de daima

matlab实现的高斯背景建模，同行可以看看学习一下。(Gauss_background_construction)

Linear Frekans Modulasyon (chirp signal)

DS_CDMA通信仿真 MATLAB仿真 通信系统 (DS_CDMA communication simulation MATLAB simulation communication system)

about semaphores explaing the program about the semaphores

说明：  对离散数字信号实现QPSK调制，输出调制后的信号(Implementation of discrete digital signals QPSK modulation, the modulated signal output)

用Admas四阶预估-校正算法的PECE模式求下列初值问题的数值解，步长h=0.1。(with Adams estimated four bands- correction algorithm PECE following initial model for the numerical solution of the problem, Step-h = 0.1.)

主要实现的是2*2用户，采用qpsk调制，实现仿真模拟图(The main achievement of 2* 2 users, qpsk modulation, simulation Figure)