Effects of sampling and quantization on single-tone frequency estimation
2000 (English)In: IEEE Transactions on Signal Processing, ISSN 1053-587X, E-ISSN 1941-0476, Vol. 48, no 3, 650-662 p.Article in journal (Refereed) Published
The effects of sampling and quantization on frequency estimation for a single sinusoid are investigated. Cramer-Rao bound for I-bit quantization is derived and compared with the limit of infinite quantization. It is found that I-bit quantization gives a slightly worse performance, however, with a dramatic increase of variance at certain frequencies. This can be avoided by using four times ol oversampling. The effect of sampling when using nonideal antialiasing lowpass filters is therefore investigated through derivation of the Cramer-Rao lower bounds. Finally, fast estimators for 1-bit quantization, in particular, correlation-based estimators, are derived,and their performance is investigated. The paper is concluded with simulation results for fourtimes oversampled I-bit quantization.
Place, publisher, year, edition, pages
2000. Vol. 48, no 3, 650-662 p.
threshold behavior, maximum-likelihood
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-19607DOI: 10.1109/78.824661ISI: 000085768200005OAI: oai:DiVA.org:kth-19607DiVA: diva2:338299
QC 20100525 QC 201111102010-08-102010-08-102011-11-10Bibliographically approved