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The effect of sampling and quantization on frequency estimation
1998 (English)In: 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP, 1998, Vol. 4, 2217-2220 p.Conference paper, Published paper (Refereed)
Abstract [en]

The effect of sampling and quantization on frequency estimation for a single sinusoid is investigated. The Cramer-Rao bound for 1 bit quantization is derived, and compared with the limit of infinite quantization. It is found that 1 bit quantization gives a slightly worse performance, however, with a dramatic increase of variance at certain frequencies. This can be avoided by using 4 times oversampling. The effect of sampling when using non-ideal antialiasing lowpass filters is therefore investigated. Cramer-Rao lower bounds are derived, and the optimal filters and sampling frequencies are found. Finally, fast estimators for 1 bit sampling, in particular correlation based estimators, are derived. The paper concludes with simulation results for 4 times oversampled 1 bit quantization

Place, publisher, year, edition, pages
1998. Vol. 4, 2217-2220 p.
Keyword [en]
1 bit quantization;4 times oversampling;AWGN;Cramer-Rao bound;additive white Gaussian noise;correlation based estimators;frequency estimation;infinite quantization;nonideal antialiasing lowpass filters;optimal filters;quantization effect;sampling effect;sampling frequencies;simulation results;single sinusoid;Gaussian noise;correlation methods;filtering theory;frequency estimation;low-pass filters;quantisation (signal);signal sampling;white noise;
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-43898DOI: 10.1109/ICASSP.1998.681588OAI: oai:DiVA.org:kth-43898DiVA: diva2:448906
Conference
1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP. Seattler, WA, USA. 12 May 1998 - 15 May 1998
Note
QC 20111124Available from: 2011-10-18 Created: 2011-10-18 Last updated: 2011-11-24Bibliographically approved

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Händel, Peter

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  • apa
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  • de-DE
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  • en-US
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  • Other locale
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