基于802.11b的补码监控调制技术  

Technique of compensation code keying in 802.11b wireless LAN

作　　者：亢丽霞[1] 王克家 丁淑娟[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2005年第6期16-18,共3页Applied Science and Technology

摘　　要：着重介绍了无线局域网所采用的补码的定义和性质及CCK调制方式,并针对该调制方式存在的噪声容限减小和码间干扰等问题,提出了一种称为格形编码的改进方法,从而使其获得更好的误码性能.最后介绍了支持802.11协议的全数字化直接扩频处理芯片的硬件实现方案.CCK modulation mode in wireless LAN is introduced and the complementary code's definition and peoperties are given in detail. Aimed at those problems such as the ISI and the reduction of noise margin, an improved method called trellis code is put forward, so that the better BER performance is achieved. Finally, an application of the digital DSSS CMOS chip is brought forward.

关 键 词：补码键控 QPSK凋制 相关 自相关 

分 类 号：TN761[电子电信—电路与系统]