摘要
目前普遍采用的DSSS扩频调制方式在提高数据速率的同时必定大幅度增加带宽 ,如何对高速数据进行扩频处理而且不增加频带的开销是一个热点问题 ,美国Harris公司在这一领域走在了前列 ,率先研制出了适用于IEEE 80 2 .1 1WLAN协议标准的能够处理速率为 5 .5Mbps和 1 1Mbps数据的扩频基带处理器HFA386 0 ,较好地解决了高信息速率与高频带利用率的矛盾。本文详细地论述了它所采用的MBOK扩频调制方式的物理模型 ,并对其性能进行了分析 ,最后给出了一个应用实例。
The common DSSS spread spectrum modulation must increase the bandwidth when the data speed has been increased. How to solve the problem is a hot point . Harris leads the head in the field and has developed the chip-HFA3860 which can process the data of 5.5Mbps or 11Mbps and which can apply to the IEEE802.11 .This paper discusses the model of the MBOK spread spectrum modulation which is adopted by the chip and analyzed its performances ,at last , puts forward a typical application .
出处
《电讯技术》
北大核心
2000年第4期71-77,共7页
Telecommunication Engineering
