NDLI: CZT-Based High Performance Frequency Estimation

Content Provider	IEEE Xplore Digital Library
Author	Huang Yuchun Huang Zailu Huang Benxiong Xu Shuhua
Copyright Year	2007
Description	Author affiliation: Dept. of Electron. & Inf., Huazhong Univ. of Sci. & Technol., Wuhan, China (Huang Yuchun; Huang Zailu; Huang Benxiong; Xu Shuhua)
Abstract	Accurate and high-performance frequency estimation of a noisy sampled sinusoid sequence with short time length and adjacent overlapping has been attracting top focus in the field of signal processing. Based on the CZT of a single-tone sequence, this paper presents a novel improved Rife CZT-interpolated frequency estimator, which develops an improved Rife algorithm on the symmetry of CZT Linear Spectrum Model by the magnitude relationship between peak and its adjacent CZT coefficients. Computer Monte -Carlo simulations show that the algorithm is effective and the proposed estimator outperforms the traditional Rife-Jane's estimator in accuracy, the CRLB-approximation RMSE of estimation and discriminating capability for adjacent overlapping. It is also shown that the CZT-based estimator has as lower SNR threshold as to about -12 dB and good estimation performance even in the case of very short samples, which is quite suitable for applications of strict stationary requirement.
Starting Page	1
Ending Page	4
File Size	423241
Page Count	4
File Format	PDF
ISBN	1424407192
DOI	10.1109/SIU.2007.4298767
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-11
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Maximum likelihood estimation Parameter estimation Computational modeling Computer simulation Signal processing algorithms Interference Frequency Estimation Sampling methods Frequency estimation Radar signal processing CZT Power system faults
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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