调频扩频，差分跳频技术是近年出现的一种新型扩频通信技术，他集跳频图案、信息调制与解调等功能于一体，构成与传统跳频技术完全不同的技术体制。对近年出现的扩频通信新技术——差分跳频技术进行了全面介绍。在对差分跳频关键技术进行详细分析的基础上，着重说明其优点及尚需解决的问题。-Spread Spectrum Frequency Modulation

该文件夹里的内容是接收分集技术中的MRC(最大比接收算法)的matlab程序实现。-The contents of the folder is receive diversity techniques MRC (maximal ratio to receive algorithm) matlab programming.

无线通信的分集技术，通过对比是否采用分集技术的接收信号的误码率，来证明分集技术能降低接收信号的误码率(The diversity technology of wireless communication proves that diversity technology can reduce the BER of received signals by comparing the BER of received signals with diversity technology.)

alamouti 发送分集与接收分集的误比较符号率比较(Error comparison symbol rate comparison between transmit diversity and receive diversity)