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
Abstract: This paper analyzes the calculation cost and characteristics of 802.11a 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.
Key words:
OFDM,
SDR,
ASP,
SW/HW codesign,
WLAN
中图分类号:
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(09): 114-116.
CHU Jianpeng; LI Xiaojin; LAI Zongsheng. Analysis and ASP Realization of 802.11a Frequency Sync. and Channel Est.[J]. Computer Engineering, 2007, 33(09): 114-116.