一种用于ZCZ-CDMA系统高速码采集的匹配滤波器组新结构

Proceedings of the Fourth International Conference on Parallel and Distributed Computing, Applications and Technologies Pub Date : 2003-10-20 DOI:10.1109/PDCAT.2003.1236330

Xiaoxu Guo, Jie Chen, Yulin Qui, N. Suehiro

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引用次数: 1

摘要

针对ZCZ-CDMA系统的码采集问题，提出了一种新的匹配滤波器组结构。ZCZ- cdma系统利用零相关区(zero correlation zone, ZCZ)序列的特殊特性，可以准确地检测多径特性，大大提高数据传输效率。在ZCZ-CDMA系统中，为了实现20Mbps的信息传输，采用传统的匹配滤波器组进行码采集和扩频运算，电路规模太大，功耗太高。采用我们提出的新型匹配滤波器组，大大减小了电路的规模和功耗。在FPGA上实现了新型匹配滤波器组的高速低功耗VLSI设计。

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A new architecture of matched-filter bank for high-speed code acquisition of ZCZ-CDMA system

We propose a new architecture of matched-filter (MF) bank for the code acquisition of ZCZ-CDMA system. The ZCZ-CDMA system can accurately detect multipath properties and greatly improve data transmission efficiency by using the special properties of the zero correlation zones (ZCZ) sequence. As a traditional matched-filter bank is used to carry out the code acquisition and the despreading operations to realize the information transmission at 20Mbps in the ZCZ-CDMA system, the circuit scale is too large and the power consumption is too high. Using our proposed new matched-filter bank, the circuit scale and the power consumption is greatly reduced. The high-speed and lower power VLSI design of the new matched-filter bank is implemented on FPGA.

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Proceedings of the Fourth International Conference on Parallel and Distributed Computing, Applications and Technologies

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