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802.11a频率同步和信道估计的分析及ASP实现
引用本文:初建朋,李小进,赖宗声.802.11a频率同步和信道估计的分析及ASP实现[J].计算机工程,2007,33(9):114-116.
作者姓名:初建朋  李小进  赖宗声
作者单位:华东师范大学微电子电路与系统研究所,上海200062
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。

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
文章编号:1000-3428(2007)09-0114-03
修稿时间:2006-05-13

Analysis and ASP Realization of 802.11a Frequency Sync. and Channel Est.
CHU Jianpeng,LI Xiaojin,LAI Zongsheng.Analysis and ASP Realization of 802.11a Frequency Sync. and Channel Est.[J].Computer Engineering,2007,33(9):114-116.
Authors:CHU Jianpeng  LI Xiaojin  LAI Zongsheng
Affiliation:(Institute of Microelectronics Circuit & System, East China Normal University, Shanghai 200062)
Abstract: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.
Keywords:OFDM  SDR  ASP  SW/HW codesign  WLAN OFDM
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