DocumentCode
3159264
Title
Correlogram for undersampled data: Bias and variance analysis
Author
Shaghaghi, Mahdi ; Vorobyov, Sergiy A.
Author_Institution
Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada
fYear
2012
fDate
25-30 March 2012
Firstpage
3513
Lastpage
3516
Abstract
This paper studies the correlogram spectrum estimation method for the case that only a subset of the Nyquist samples is available. The method is able to estimate the spectrum from undersampled data. The bias and variance of the estimator are derived. We also show that there is a tradeoff between the accuracy of the estimation and the frequency resolution. The asymptotic behavior of the estimator is also investigated, and it is proved that this method is a consistent estimator.
Keywords
data analysis; frequency estimation; signal sampling; spectral analysis; Nyquist samples; asymptotic behavior; bias analysis; correlogram spectrum estimation method; frequency resolution; undersampled data; variance analysis; Accuracy; Delay; Estimation; Extraterrestrial measurements; Frequency estimation; Seismic measurements; Vectors; Correlogram; consistency; undersampling;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech and Signal Processing (ICASSP), 2012 IEEE International Conference on
Conference_Location
Kyoto
ISSN
1520-6149
Print_ISBN
978-1-4673-0045-2
Electronic_ISBN
1520-6149
Type
conf
DOI
10.1109/ICASSP.2012.6288674
Filename
6288674
Link To Document