802.11a频率同步和信道估计的分析及ASP实现  

Analysis and ASP Realization of 802.11a Frequency Sync. and Channel Est.

作　　者：初建朋[1] 李小进[1] 赖宗声[1] 

机构地区：[1]华东师范大学微电子电路与系统研究所,上海200062

出　　处：《计算机工程》2007年第9期114-116,共3页Computer Engineering

基　　金：上海市科委基金资助项目(047062019)

摘　　要：分析了802.11a无线局域网(WLAN)OFDM基带接收系统中频率同步和信道估计算法的运算特点。针对实际算法的特点,设计了一个面向应用的专用DSP处理器(ASP),利用ASP可以以软件方式实现802.11a前导序列的接收。经实际流片验证表明,该设计可以实现11a前导序列接收的各种基带处理运算,具有高度的灵活性和较小的芯片面积。This paper analyzes the calculation cost and characteristics of 802.11 a preamble receiving. Realization of these algorithms using SDR, which is based on an application specific DSP and S/W codesign, is introduced. An effectively DSP processor architecture is designed. The test results show this design is able to implement 11a baseband process effectively and flexibly.

关 键 词：正交频分复用 软件无线电 面向应用数字信号处理器 软硬件协同设计 无线局域网 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]