cdma2

本源代码包括了一个完整的蜂窝移动通信系统的各个模块的仿真程序,开发环境是matlab,希望可以从事此方面工作的人员提供一个借鉴.(Source code, including a complete cellular mobile communication system simulation program of each module, the development environment is matlab, hope that we can engage in this work provide a reference.)

Blowfish Algorithm is a Feistel Network, iterating a simple encryption function 16 times. The block size is 64 bits, and the key can be any length up to 448 bits. Although there is a complex initialization phase required before any encryption can take place, the actual encryption of data is very efficient on large microprocessors. Blowfish is a variable-length key block cipher. It is suitable for applications where the key does not change often, like a communications link or an automatic file encryptor. It is significantly faster than most encryption algorithms when implemented on 32-bit microprocessors with large data caches.

POWELL法，优化设计中的经典算法之一。这里给出powell法Matlab源程序(POWELL method to optimize the design of the classic algorithm. Matlab source code is given here。 )

这组代码模拟了整个信号的编码，调制，解调，译码在无线通信，其中包括A-law扩展，PCM和的2PSK调制解调的技术过程。(This collection of codes simulates the whole signal encoding, modulation, demodulation, decoding process in wireless communication, which involves the techniques of A law companding, PCM, and 2PSK modulation and demodulation.)

正弦波的LP建模 能显示原正弦波波形及它的频谱图，LP模型的频谱图，LP模型的极点图，LP模型的脉冲响应图。(This demonstration illustrates the modelling of a sinewave with an LP model The displays show the sinewave,it spectrum, the spectrum of the LP model,the poles of the LP model and the impuse response of the LP model.)

好用的matlab程序，专门针对冲激串的傅立叶变换设计的(welldone，good things to learn matlab)

用MATLA实现机器学习中的批处理梯度下降法和随机梯度下降法(Batch gradient descent method and stochastic gradient descent method in machine learning using MATLA)

BER in WCDMA simulation

第6章 矩阵特征值计算.zip。是从书中光盘里拷贝的代码，放在这里与大家共享，希望对大家有帮助。(Chapter 6 matrix eigenvalue calculation)

图形处理_matlab代码。用于创建图形，编辑图形，等高线等。 (Graphics processing _matlab code. For creating graphics, editing, graphics, contour lines.)