WFRF:(Madsen A)
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On frequency estimation from oversampled quantized observations
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- Händel, Peter, 1962- (author)
- KTH,Signaler, sensorer och system
- Host-Madsen, A. (author)
- (creator_code:org_t)
- 1999
- 1999
- English.
- In: Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on. ; , s. 1549-1552
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- The effect of sampling and quantization on frequency estimation for a single sinusoid is investigated. Asymptotic Cramer-Rao bounds (CRB) for 1-bit quantization and for non-ideal filters are derived, which are simpler to calculate than the exact CRB while still relatively accurate. It is further investigated how many bits should be used in quantization to avoid the problems of 1-bit quantization, and it turns out that 3-4 bits are enough. Finally, oversampled 1-bit quantization is investigated. It is determined how much the signal should be oversampled, and in addition Sigma; Delta; modulators are investigated
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- Sigma; Delta; modulators;CRB;asymptotic Cramer-Rao bounds;frequency estimation;nonideal filters;oversampled quantized observations;quantization;sinusoid;Butterworth filters;Gaussian noise;frequency estimation;quantisation (signal);sigma-delta modulation;signal sampling
Publication and Content Type
- ref (subject category)
- kon (subject category)
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