RuiHua

leach and genetic algortihm in wireless sensor networks

GA Optimization methods for real numbers (continuous numbers)

his master’s thesis deals with satellite transponders. Firstly, satellite communication basics, satellite services definitions, frequency bands and satellite orbits are investigated. The second chapter forms the satellite transponders analysis. The transparent transponder and the transponder with on-board processing are described. Finally, a transponder model is designed and simulated in communication chain.

一本介绍matlab学习的书籍，清华出版 高清，非常有用(An introduction to the MATLAB learning books, Tsinghua publishing HD, very useful )

qpsk调制 信道仿真 采用蒙特卡洛 信号和噪声随机生成，莱斯信道(qpsk modulation and channel simulation using Monte Carlo signal and noise randomly generated, Rice channel)

说明：  DSP 的 matlab 仿真，主程序部分，已经通过编译。(DSP Matlab simulation, part of the main program, the compiler has passed.)

在程序中用一般的MUSIC方法估计了信号的频谱，从两图中可看出在信号各频率处，频谱的峰值较大，故能明显的与噪声相区别，可在一定程度上避免在信号幅度较小时信号被噪声淹没的情况。(MUSIC method general procedures used to estimate the spectrum of the signal, it can be seen from the two graphs in the signal at each frequency of the spectrum peak larger, and it could be significantly distinguished from noise in the signal can be avoided to some extent a lesser extent, the signal is noise submerged.)

说明：  这个软件涉及到一个IEEE 802.11a的系统。该文件是“IEEE80211a.mdl”文件被打开使用Simulink的(The software involves a IEEE 802.11a systems. The file is &quot IEEE80211a.mdl&quot file is opened using the Simulink-)

this is a simulink matlab for syncronous machine.

DLC转换是数据压缩的一种方式，是一种有损压缩模式，附件为matlab实现算法的代码(DLC is a way to convert data compression is a lossy compression mode, accessories for matlab algorithm code)