Title :
Power efficient cross-correlation using bitstreams
Author :
Liseth, Olav E. ; Mo, Daniel ; Hjortland, Håkon A. ; Lande, Tor Sverre ; Wisland, Dag T.
Author_Institution :
Dept. of Inf., Univ. of Oslo, Oslo, Norway
Abstract :
The fundamental operation of cross-correlating signals is viable in a number of signal processing applications. In typical pattern-matching applications, cross-correlation is desirable. In this paper we present a power efficient implementation of a time-domain cross-correlator suitable for integration in CMOS. Bitstream coding of both data and template simplify multiplication operations. Measured performance of a CMOS implementation in 90 nm technology is reported.
Keywords :
CMOS digital integrated circuits; FIR filters; correlators; digital signal processing chips; electrocardiography; encoding; filtering theory; medical signal processing; pattern matching; sigma-delta modulation; signal classification; CMOS; FIR filter; data bitstream coding; electrocardiogram classification; multiplication operations; pattern matching; power efficient cross-correlation; sigma-delta modulator; signal processing; template bitstream coding; time-domain cross-correlator; two step interpolation filter; CMOS technology; Delta-sigma modulation; Detectors; Electrocardiography; Electrodes; Heart beat; Process control; Signal processing; Ubiquitous computing; Wireless sensor networks;
Conference_Titel :
NORCHIP, 2009
Conference_Location :
Trondheim
Print_ISBN :
978-1-4244-4310-9
Electronic_ISBN :
978-1-4244-4311-6
DOI :
10.1109/NORCHP.2009.5397844
