Decompose

一个GUI界面，包括图像反转、对数和幂次变换、直方图均衡化等等(A GUI interface, including image inversion, logarithmic and power transformations, histogram equalization, etc.)

分析相位耦合的两个算例，分别利用了双谱和双相干系数法(Analysis of phase coupling of two examples, namely the use of a dual spectrum and bicoherence France)

遗传算法，基于二进制编码形式，用于解决优化问题，具有很好的全局优化效果。(genetic algorithm for optimization)

非常有用的学习资料，用它学习matlab，从入门到精通，面面俱到(Very useful learning materials, use it to learn matlab, from entry to the master, everything)

说明：  matlab 和c或者c++ 接口程序，采用mex技术和matlab 计算引擎方式，可以提高matlab运行效率(matlab and c or c++ interface program using matlab calculation mex engine technology and methods can improve the operating efficiency matlab)

In a normal communication channel, it is often desirable to concentrate the information in as narrow a region of the frequency spectrum as possible in order to conserve available bandwidth and to reduce power. The basic spread spectrum technique, on the other hand, is designed to encode a stream of information by spreading the encoded data across as much of the frequency spectrum as possible. This allows the signal reception, even if there is interference on some frequencies. While there are many variations on spread spectrum communication, we concentrated on Direct Sequence Spread Spectrum encoding (DSSS). The DSSS method spreads the signal by multiplying it by a chip, a maximal length pseudorandom sequence modulated at a known rate. Since the host signals are in discrete-time format, we can use the sampling rate as the chip rate for coding.

该程序实现了通信中16QAM的调制解调，并与理论误码率进行比较，证明仿真的正确性。(The program implements a 16QAM modulation and demodulation in a communication, with the theoretical bit error rate compared to prove the correctness of the simulation.)

变步长四阶龙格库塔法，可自己控制误差精度，可用于变参微分方程组，亲测可用(variable-step runge-kutta)

Pricing asian options

Roberts edge detection algorithm