Arithmetic

完整的现代通信系统仿真源代码包括信道容量和编码扩频通信等(Complete source code of modern communication system simulation)

牛顿插值算法的小程序。牛顿插值算法，比一般的Interpolation精度高一些，使用较为广泛。(Newton interpolation method, which is widely used.)

说明：  本套资料,包含了各种Matlab和C++混合编程的例子和理论.是研究Matlab 和VC CBuilder的最权威和经典的例子.在网上搜集的时候发了一个下午的时间。结果发现内容太少了.不得不到我们学校的图书馆去找了。找遍了整个中国期刊全文数据库(CJFD),才找到了这几篇对与编程人员来说的有帮助和参考的文章了。发了我好几块钱了，希望对那些Matlab与Vc和Cbuilder混合编程的人员有很大的帮助了.(the sets of data, including a variety of mixed Matlab and C programming examples and theory. Research VC CBuilder Matlab and the most authoritative and classic examples. The online collection of hair at a time. The results showed very little content. Our school had to find a library. Grateful the entire CJFD (CJFD), they will find this program with a few pairs of officers help and reference of the article. I made a few good money in the hope that those with vitamin C and Matlab Cbuilder mixed programming staff have great help.)

说明：  extern void cfsqp ANSI((int nparam, int nf, int nfsr, int nineqn, int nineq, int neqn,

介绍了数字通信中的QPSK调制解调的原理，通过用Matlab编写脚本程序对QPSK通信系统的发射和接收过程的具体实现进行模拟仿真，绘出信号在理想信道和加噪信道中模拟传输时的时域图，并对各模块进行了频谱分析，所得到的结果与 理论基本相符，对于理解QPSK系统的性能并在系统的实际应用上作进一步的设计，提供了有效的参考依据。 (The introduction was done with the principle of the QPSK modulation and demodulation in digital communications，a script was written by using Matlab program to CalTy out a simulation of the QPSK communication system．which contains the concrete realization of transmit and receive process．The time-domain diagram is drew separately when the signal transmits in the ideal channel and in the channel with noise，spectral analysis of each module is also done，the results obtained with theoretical results in the main，which provides an effective frame of reference for understanding the performance of QPSK systems，and the practical application in the system to make further designed．)

用于计算互近似熵，互近似熵是两个信号之间不同步的量度。模糊熵与互信息(It is used to calculate the mutual approximate entropy, and the mutual approximate entropy is a measure of the non synchronization between the two signals)

说明：  计算流体力学的典型流程，navier-stokes方程组的数值解法(The typical computational fluid dynamics process, navier-stokes equations numerical solution)

我的这个源码可以直接绘制一个正圆。方便又实惠哦(mine is good,it can print a circle)

这是最优波束形成过程的仿真，图形效果很好(This is the optimal beam-forming process simulation, graphic works well)

matlab编程时不采用工具箱内的内部函数specgram，按照计算过程直接编写仿真程序(matlab stft)