chazhiyunihe

16-QAM constelation Source code for 16-QAM constelation for various signal to noise ratio levels in dB

圆环阵的天线方向图 与基于SMI算法的线阵的自适应波束形成(Adaptive beamforming circular array antenna pattern SMI algorithm based linear array)

Implementation of Heuler methods. Implicit, Explicit and Simplex Versions. In Matlab. Approximates the solution of an expression. Includes plotting routines.

说明：  伪随机码或称PN码，是扩频通信中不可缺少的一种序列。扩频通信，简单的说来就是通过一组相关性很强的伪随机序列，使原有的信号按照伪随机序列的特性出现。从波形上看，原有信号完全淹没于随机的噪声中，达到隐藏信号和抗干扰的目的。接受方只要有相同的伪随机序列，就可以通过伪随机序列很强的相关性将信号还原出来。而m序列，是扩频系统中最长用的伪随机序列。下面的代码就是基于matlab的生成m序列的代码，通过改变初始多项式的值，就可以生成不同阶数的m序列。(Pseudo-random code or PN code, spread spectrum communication is indispensable to a sequence. Spread spectrum communication, a simple to say that the adoption of a group of highly related to pseudo-random sequence, so that the original signal in accordance with the characteristics of pseudo-random sequence there. From the wave point of view, the original signal completely submerged in the random noise to hide the purpose of signal and interference. As long as the recipient has the same pseudo-random sequence, the pseudo-random sequence can be a strong correlation to restore the signal out. And m sequence spread spectrum system is the longest of the pseudo-random sequence used. The following code is generated based on m sequences of matlab code, by changing the value of the initial polynomial, we can generate a different order of the m sequence.)

MATLAB实现文本动态显示，感兴趣者一起探讨(MATLAB realization of dynamic display text, those who are interested to explore)

MATLAB制作的心理声学模型源码，用于音频编码的研究。(MATLAB produced source psychoacoustic model for audio coding research.)

voicebox ,很不错的matlab源程序(voicebox, a very good source matlab)

source code for Viterbi Algorithm.

基于MATLAB的计算机控制系统，PID控制器的PD（微分，积分）控制仿真分析。(Based on the MATLAB computer control system, PID controller PD (differential, integral) control simulation analysis.)

无线电通信正交频移键控调制解调程序源码，给出输入数字信息序列，经调制后得到解调结果(QPSK for wireless electronic communication)