DocumentCode :
3112797
Title :
A fast matched filter in time domain
Author :
Akopian, David ; Agaian, Sos
Author_Institution :
Texas Univ., San Antonio, TX, USA
fYear :
2004
fDate :
26-29 April 2004
Firstpage :
455
Lastpage :
460
Abstract :
This paper presents a fast matched filter algorithm in time domain. Matched filters compute correlation of signals for optimal detection of signals in noise, for extracting ranging measurements, synchronisation, etc. We consider matched filters in the context of Global Positioning System (GPS) receivers, but the algorithms presented here can be used for other applications as no constraining assumptions are made in derivations. Our method outperforms conventional time domain method several times in arithmetic complexity. It is also competitive with transform domain techniques based on Fast Fourier Transform (FFT). Unlike FFT based methods our approach is accurate and is not using rounding and scaling operations.
Keywords :
Global Positioning System; fast Fourier transforms; matched filters; radionavigation; Fast Fourier Transform; Global Positioning System; fast matched filter; matched filters; optimal detection of signals; time domain; transform domain techniques; Extraterrestrial measurements; Global Positioning System; Matched filters; Satellite broadcasting; Satellite navigation systems; Signal detection; Signal processing; Time frequency analysis; Time measurement; Timing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Position Location and Navigation Symposium, 2004. PLANS 2004
Print_ISBN :
0-7803-8416-4
Type :
conf
DOI :
10.1109/PLANS.2004.1309029
Filename :
1309029
Link To Document :
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