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

cdma系统，发射机采用直接扩频序列后发射，接收机采用MMSE接收机(cdma systems, the transmitter after the launch of direct sequence spread spectrum receiver using MMSE Receiver)

c8051F系列单片机CAN总线的应用例程(c8051F Series Single-chip CAN bus application routines)

OFDM系统的自适应功率和比特分配算法，实现系统资源的自适应分配（4)－－原创(adaptive allocation for OFDM system)

说明：  横河CS3000培训讲义 DCS经典介绍和操作(Yokogawa CS3000 classical training, introduction and operation of DCS notes)

LMS，RLS自适应均衡算法示例，本科硕士阶段通信信号处理课程代码示例(LMS,RLS adaptive equalization algorithm example, undergraduate master stage communication signal processing course code example)

这是矩阵计算一书的第二部分，由于是从网上下载的，两部分是分开的，没法合并，所以只好分两次上传，欢迎下载浏览。(This is the matrix of the second part of the book, as it is downloaded from the Internet, the two parts are separated, can not be combined, so only two upload, please download the browser.)

说明：  matlab锁相环解决相干光通信系统激光器相位噪声(Phase-locked loop to solve the phase noise of laser in optical communication system)

中国移动位置业务Le Ls接口技术规范,详细规范,(China Mobile location Service Le Ls interface technical specification, detail specification,)

说明：  psk调制,在matlab命令区输入bpskdigital[1 0 1 1 0 0 1 0],1]按运行,即可看到调制波(Psk modulation, input bpskdigital [1 0 1 0 0 0] in the matlab command area, 1] press operation, you can see the modulation wave)