Matched filter for DS-CDMA of up to 50 MChip/s based on sampled analog signal processing
- 22 November 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 01936530,p. 100-101,
- https://doi.org/10.1109/isscc.1997.585280
Abstract
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.Keywords
This publication has 1 reference indexed in Scilit:
- A CMOS 18 THzΩ 248 Mb/s transimpedance amplifier and 155 Mb/s LED-driver for low cost optical fiber linksIEEE Journal of Solid-State Circuits, 1994