random-number

这是一个基于空时分组编码的MIMO_OFDM通信系统的仿真设计。此系统包括QPSK调制解，IFFT调制，空时编解码，基于训练符号的信道估计等通信模块。 (This is based on space-time block coding MIMO_OFDM communication system simulation design. This system includes the QPSK modem, IFFT modulation, space-time coding and decoding, symbol-based channel estimation training and other communication module.)

可以计算非线性薛定愕方程的exe程序,代码是matlab的( This program is a simple introduction to the Fast Fourier Transform Analytic and numerical solution are take into account. The code(MATLAB) can be used to simulate Nonlinear Schrodinger Equation (NLSE))

1． 了解FIR滤波器的原理及使用方法。2． 了解使用Matlab语言设计FIR滤波器的方法。了解DSP对FIR滤波器的设计及编程方法。(1.familiar with FIR. 2.familiar with using matlab design FIR 3.familiar with DSP program for FIR)

matlab在时间序列中的应用，很全，希望能对大家有用(matlab in the application of time series, it is all in the hope that useful)

Zhang wavelet neural network. Do the first wavelet network made by Dr. Zhang.

Rayleigh Channel Modelling

14节点的无功优化是用粒子群算法实现的，很实用，希望对大家有帮助。(14-node reactive power optimization is achieved using particle swarm algorithm, very practical, we hope to help.)

说明：  注水算法的简单应用程序，通过简单的实例实现注水算法(water fillling program)

说明：  本文阐述了扩展频谱通信技术的理论基础和实现方法，利用MATLAB 提供的可视化 工具Simulink 建立了扩频通信系统仿真模型，详细讲述了各模块的设计，并指出了仿真建模 中要注意的问题。在给定仿真条件下，运行了仿真程序，得到了预期的仿真结果。同时，利 用建立的仿真系统，研究了扩频增益与输出端信噪比的关系，结果表明，在相同误码率下， 增大扩频增益，可以提高系统输出端的信噪比，从而提高通信系统的抗干扰能力。 (This paper describes the theory of spread-spectrum communication technology and implementation methods based on the use of visualization tools provided by MATLAB Simulink to establish a spread spectrum communication system simulation model, described in detail the design of each module, and pointed out that the simulation modeling to note problem. In the given simulation conditions, running a simulation program to obtain the desired simulation results. Meanwhile, the use of the simulation system to study the spreading gain and the relationship between the output signal to noise ratio, results show that the same bit error rate, increased spreading gain can increase the system output signal to noise ratio, thereby enhancing communication system disturbance.)

采用MATLAB语言编译的线性方程组求解函数，希望对大家有用(resolving overdetermined linear equations)