Phase_Modulation_and_Demodulation

基于simulink的码分多址扩频通信系统的仿真平台(DSSS-CDMA simulink)

主要 对无线定位TDOA CHAN算法以及TAYLOR算法进行误码仿真并且仿真了一种两算法相结合的算法 并对误码进行比较(The content is mainly to simulate Chan Algorithm and Taylor Algorithm ,then compare their error performance.Based on them,A new Algorithm combining the two type of Algorithm is also proposed.)

研究生数字信号处理讲义，基于奥本海姆原著进行讲授的(Graduate Digital Signal Processing notes, based on the teaching of Oppenheim' s original)

stm32f4xx 官方标准外设固件库 ，含有多种类型的设计案例(Stm32f4xx official standard peripheral firmware library, containing a variety of design cases)

基于梳状导频的OFDM信道估计中LS算法的测试程序(LS algorithm testing program based on the the comb pilot of OFDM channel estimation)

TCH全速率，实现把源码发送并利用纠错和交织保护来保护源码(TCH full rate, realize the source code to send and the use of error correction and interwoven protection to protect the source code)

说明：  利用遗传算法优化SVM的两个参数，得到高精度的SVM模型用于识别分类(Optimization of SVM parameters by GA algorithm)

基于quartus的布斯乘法器的verilog 实现。布斯乘法算法是计算机中一种利用数的2的补码形式来计算乘法的算法。该算法由安德鲁·唐纳德·布斯于1950 年发明，当时他在伦敦大学伯克贝克学院做晶体学研究。布斯曾使用过台式计算器，由于用这种计算器来做移位计算比加法快，他发明了该算法来加快计算速度。(The verilog codes of booth multiplier based on quartus. Booth multiplication algorithm is a computer algorithm using the complement form of number 2 to calculate the multiplication. The algorithm was invented in 1950 by Andrew Donald booth, who was working on crystallography at birkbeck college, university of London. Booth used a desktop calculator, and because it was faster to do shifts than to add, he invented the algorithm to speed up the calculations.)

This document describes about the digital modulation techniques especially about spread spectrum.

通过控制并口给刺激与记录信号，行为电生理实验用(By controlling the parallel port to stimulate and record signals, for behavioral electrophysiological experiments )