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Frequency estimation utilizing the Hadamard transform
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- Andersson, Tomas (author)
- KTH,Signaler, sensorer och system
-
- Skoglund, Mikael (author)
- KTH,Signaler, sensorer och system
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- Händel, Peter, 1962- (author)
- KTH,Signaler, sensorer och system
- (creator_code:org_t)
- NEW YORK : IEEE, 2001
- 2001
- English.
- In: 2001 IEEE WORKSHOP ON STATISTICAL SIGNAL PROCESSING PROCEEDINGS. - NEW YORK : IEEE. - 0780370112 ; , s. 409-412
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- Fast analog to digital conversion with only one bit per sample does not only make high sampling rates possible but also reduces the required hardware complexity. For short data buffers or block lengths, it has been shown that tone frequency estimators can be implemented by a simple table look-up. In this paper we present an analysis of such tables using the Hadamard transform. As an outcome of the analysis, we propose a class of nonlinear estimators of low complexity. Their performance is evaluated using numerical simulations. Comparisons are made with the proper Cramer-Rao bound and with the table look-up approach.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- Signal processing
- Signalbehandling
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