SPWMwave

在matlab中偏微分的典型例子的代码，例如波形方程，热传导方程等()

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.

用matlab完成包络检波，可以实现整个过程，适合初学者。(Complete envelope detection with matlab, you can achieve the entire process, suitable for beginners.)

用于计算ER随机图，可随机生成一定节点数量的无向连通图。(Randomly generate undirected graph)

it s about digital watermark using LSBs, DCT and Wavelet methods

信号处理 music,求根算法源程序及仿真很经典。(Signal processing music, Roots element program and the simulation algorithm)

此程序采用matlab 语言编写，针对现代电力系统分析中牛顿拉夫逊法进行的修改(This program uses matlab language, modify the Newton Raphson method for modern power system analysis)

THis application is demonstrate how to use XSLT sheets to make a word-document using OpenXML 2.0, WordProcessing.

雷达信号处理,针对现代雷达信号处理的主要方式，运用数字信号处理理论和 Matlab 软件研究雷达信号处理的仿真 问题。提出了一个仿真模型，该模型可以仿真雷达信号、热噪声与杂波的产生和雷达系统中信号的动态处理 过程。用 Matlab 对某脉冲压缩雷达信号处理系统进行了仿真，得到了雷达系统中各个处理点上的具体信号形 式，既包含幅度信息，又包含相位信息，该模型能较好地满足对雷达信号处理的仿真要求，显示了用 Matlab 仿真雷达信号处理系统的方便、快捷的优点。 (Radar signal processing, radar signal processing for the modern major mode of use of digital signal processing theory and Matlab software simulation of the radar signal processing problems. Proposed a simulation model, the model can be simulation of radar signals, thermal noise and clutter of the radar system in the generation and dynamic signal processing. Using Matlab for a pulse compression radar signal processing system simulation, radar systems have been various points on the treatment of specific signal form contains both amplitude information, but also contains the phase information, the model can better meet the needs of radar signal processing simulation requirements, shows the Matlab simulation using radar signal processing system convenient, fast advantages.)

说明：  QPSK调制的ofdm仿真，采用matlab语言编写，忽略了信道估计等部分。(QPSK modulation ofdm simulation using matlab language, ignore the part of the channel estimation.)