DocumentCode :
2974284
Title :
Noise influence on frequency estimation accuracy from Energy Centrobaric Correction Method for discrete spectrum
Author :
Chun-song, Zheng ; Kang, Ding ; Zhi-jian, Yang
Author_Institution :
Sch. of Mech. & Automotive Eng., South China Univ. of Technol., Guangzhou, China
fYear :
2009
fDate :
22-24 June 2009
Firstpage :
1477
Lastpage :
1481
Abstract :
This paper investigates the noise influence on the frequency estimation performance of energy centrobaric correction method for discrete spectrum. The theoretical frequency estimation error is derived under condition that the observed signal is multiplied by a symmetrical window function. The theoretical error has been analyzed for either the right or wrong maximal spectrum line is searched. Some measures have been proposed to overcome the drawbacks of Energy Centrobaric Correction Method using only three lines estimation or four lines estimation. Simulations for discrete spectrum multiplied by Hanning window function are finally carried out to verify the correctness of the theoretical derivation. The results also demonstrate that the improved Energy Centrobaric Correction Method has higher anti-noise performance and broader application range.
Keywords :
frequency estimation; spectral analysis; Hanning window function; antinoise performance; discrete spectrum; energy centrobaric correction method; frequency estimation accuracy; frequency estimation error; symmetrical window function; Amplitude estimation; Automation; Energy measurement; Error analysis; Frequency estimation; Harmonic analysis; Noise level; Noise measurement; Parameter estimation; Signal analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information and Automation, 2009. ICIA '09. International Conference on
Conference_Location :
Zhuhai, Macau
Print_ISBN :
978-1-4244-3607-1
Electronic_ISBN :
978-1-4244-3608-8
Type :
conf
DOI :
10.1109/ICINFA.2009.5205150
Filename :
5205150
Link To Document :
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