ex9_3_PSK

文章针对无线传感器网络(WSN)节点定位算法DV-Hop的节点间距离沽计误差对定位准确度影响较大的问题，提出一种基于LS-SVR(最小二乘支持向量回归机)的定位算法L-LSSVR. (Aiming at solving the problem of the significant influence of distance estimation error onlocation accuracy of DV-Hop in Wireless Sensor Networks (WSN), a new node localizationmethod based on LS-SVR (L-LSSVR) is proposed.)

This is wireless sensor network simulation source

协作通信中的基础仿真，含有pdf格式文章(cooperative communication Introduction and Simulation)

简单的聊天室，分为服务器和客户端，开发环境为vc6.0，自己答辩用的代码。(Simple chat rooms are divided into servers and clients.)

张贤达的盲信号处理讲义 包括盲源分离，斜投影。联合对角化。非负矩阵分解的介绍(blind source separation by Pro. Zhang xian da.)

matlab，QPSK,通信系统，调制，解调，信号波形，频谱(matlab, QPSK, the communication system, modulation, demodulation, the signal waveform, the spectrum)

两机通讯，C语言程序，内详，很好用，接口课程设计(Two-machine communication, C language program, in detail, very good, interface design course)

数字信号处理，设计数字滤波器，利用MATLAB语言仿真实现(Digital Signal Processing, Design of Digital Filter and Realization by MATLAB Simulation)

说明：  实现了一个直接扩频系统，使用BPSK作为调制解调方法。并比较白噪声AWGN及瑞利衰落(rayleigh fading)环境下，误码率的影响。(There are two files in the zip folder. bpsk_spread.m and jakesmodel.m Steps for simulation: 1] Run jakesmodel.m first 2] Then run bpsk_spread.m . 3] Note that during the first run bpsk_spread.m has no rayleigh fading.This is because the corresponding code has been commented 4] The resulting performance is stored in BER_awgn. 5] Now uncomment the Rayleigh Fading code in bpsk_spread.m file. 6] Same time comment BER_awgn (line 112) and uncomment BER_ray variable. 7] Run the simulation. To compare the perfromances of the receiver using DSSS plot the BER_awgn and BER_ray >>semilogy([1:8],BER_awgn(1:8), g* ) hold on semilogy([1:8],BER_ray(1:8), -.b* ) hold on grid on )

分别上传了多天线系统中的SISO，SIMO，MISO以及MIMO模型仿真程序，对比了不同模型的容量。还有最优算法与最大范数算法的误码率比较程序。很实用！(Upload four system model,SISO SIMO MISO and MIMO,respectively.And compare their capacity.In addition,a BER program is also uploaded based on optimal algorithm and maximum norms)