CDMA扩频原理 培训教材目录1 相关技术介绍............................................... 1-11.1多址技术................................................................................................1-11.1.1FDMA.................................................................................................1-21.1.2TDMA ................................................................................................1-21.1.3CDMA................................................................................................1-32 扩频通信理论............................................... 2-12.1扩频通信定义 ........................................................................................2-12.2扩频通信基本原理.................................................................................2-22.3扩频通信理论基础 .................................................................................2-32.4处理增益和抗干扰容限 ..........................................................................2-43 伪随机序列的设计及特性..................................... 3-13.1移位寄存器序列.....................................................................................3-13.2自相关特性............................................................................................3-53.3互相关特性............................................................................................3-63.4m序列的特征.........................................................................................3-74 CDMA中的扩频码 ............................................. 4-14.1Walsh码..................................................................................................4-14.1.1Walsh码的产生过程.......................................................................4-14.1.2Walsh码的功能..............................................................................4-24.2PN短码..................................................................................................4-34.2...
