Matched filter for DS-CDMA of up to 50 MChip/s based on sampled analog signal processing
Matched filter for DS-CDMA of up to 50 MChip/s based on sampled analog signal processing
复制标题
基于采样模拟信号处理的 DS-CDMA 匹配滤波器，速度高达 50 Mchip/s
DOI：
10.1109/isscc.1997.585280
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
A. Kito
中科院分区：
文献类型：
--
作者：
T. Shibano;K. Lizuka;M. Miyamoto;M. Osaka;R. Miyama;A. Kito
匹配滤波器(MF)被认为是捕获DS-CDMA信号的最快方法。MF计算输入信号和用于调制的滤波系数之间的互相关。中频的功耗是实现多媒体手持终端的关键问题。最近，使用模拟信号处理的中频已经达到了最大处理速率25 MHz，功耗110 mW。虽然这是朝着实现宽带码分多址迈出的重要一步，但在处理速率方面仍需要相当大的改进。在不采用规模化工艺的情况下提高了处理速度。补偿工艺波动以保持高精度的模拟信号处理。
The matched filter (MF) is known as the fastest method for acquisition of DS-CDMA signals. The MF calculates a cross-correlation between an input signal and a filtering coefficient employed for modulation. Power consumption of the MF is a key issue for realizing multimedia hand-held terminals. Recently, a MF that uses analog signal processing has achieved a maximum processing rate of 25 MHz with 110 mW power consumption. Although this is a significant step toward the realization of a wideband CDMA, a considerable amount of improvement in processing rate is still required. Improvement is made in the processing rate without resorting to a scaled process. Process fluctuations are compensated to maintain high-precision analog signal processing.