DS_CDMA_communication_system

包括抽样函数， 余弦函数， 升余弦函数， 滚降升余弦函数的频谱(Including the sampling function, cosine function or cosine function, roll-off spectrum raised cosine function)

自己编写求取细通道内气泡长度信息，先转化为灰度图，再求取长度(I have written to strike a fine bubbles channel length information, first converted to grayscale, and then calculate the length of the)

curve fitting by fft

混沌系统的李亚普洛夫指数的求解，步骤很详细，可以适用于不同的混沌系统。(Chaotic system Lyapulov Index solving steps in detail, can be applied to different chaotic systems.)

说明：  Induction motor modelling and several other modelling have been submitted here use it enjoy it.......

OQPSK信号matlab/simulink仿真程序，(OQPSK signal matlab/simulink simulation program)

采用RS码技术的系统仿真，程序说明详尽，是学习通信技术的一个难得的好材料。(RS code using the system simulation, a detailed description of the procedures is to learn a valuable communication technologies good material.)

说明：  bp神经网络程序，一共有是个程序，其中有网络训练，举例应用(bp neural network program, a total of a process, including network training, for example the application of)

Monte Carlo方法的实质是通过大量随机试验，利用概率论解决问题的一种数值方法，基本思想是基于概率和体积间的相似性。它和Simulation有细微区别。单独的Simulation只是模拟一些随机的运动，其结果是不确定的；Monte Carlo在计算的中间过程中出现的数是随机的，但是它要解决的问题的结果却是确定的。(The essence of the Monte Carlo method is a numerical method to solve the problem through a large number of randomized trials, the use of probability theory, the basic idea is based on the similarity between the probability and volume. There are subtle differences between it and Simulation. Separate the Simulation simulation of random movement, the result is uncertain number of the Monte Carlo calculations in the middle of the process is random, but it is to solve the problem the result is determined.)

sd method for optimum design