第四章程序：一维配点型无网格法MATLAB程序

说明：  进行FDOA频差定位的程序，计算GDOP(Carry out FDOA frequency difference positioning program and calculate GDOP)

Ping server and report in Windows XP.

获得系统的内存信息的小例子，我觉得不存，拿出来大家分享-Access to system memory information small example, I do not think we kept up to everyone to share

dqpsk的完整調製解調，采用costas載波同步(DQPSK complete modulation and demodulation, using Costas carrier synchronization)

不同信号的循环谱（AM,BPSK,BFSK,DME等）可以直接使用，来分析信号的循环平稳特性。(The cyclic spectrum of different signals (AM, BPSK, BFSK, DME, etc.) can be directly used to analyze the cyclostationary characteristics of signals.)

基于tcp通信的客户端源代码，可以与基于TCP通信的服务器端实现链接并通话-client for tcp communication

程序内存分配方式详解:一个讲解内存分配的教程，word版本很详细值得学习(Memory distribution Xiangjie: a brief tutorial on memory allocation, word version is more worthy of study)

蒸发器(直接蒸发式空气冷却器)的设计；参考彦启森的空气调节用制冷技术第四章的内容；制冷剂为R22和R134a(Evaporator (direct evaporative air cooler) design reference Kai Yan Sen air conditioning refrigeration technology content of Chapter IV R22 and R134a refrigerant)

Windows hasp key dongle

Abstract Windowed Cursor Test Source Code for Andriod.