Two-Dimensional Harmonic Retrieval in Correlative Noise Based on Genetic Algorithm

Autor: Wu Sun-Yong, Liao Gui-Sheng, Yang Zhi-Wei
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: EURASIP Journal on Advances in Signal Processing, Vol 2010, Iss 1, p 569371 (2010)
Druh dokumentu: article
ISSN: 1687-6172
1687-6180
Popis: We propose a niche Genetic algorithm (GA) for the two-dimensional (2D) harmonic retrieval in the presence of correlative zero-mean, multiplicative, and additive noise. Firstly, we introduce a 2D fourth-order time-average moment spectrum which has extremum values at the harmonic frequencies. On this basis, the problem of harmonic retrieval is treated as a problem of finding the extremum values for which the niche GA is resorted. Utilizing the global searching ability of the GA, this method can improve the frequency estimation performance. The effectiveness of the proposed algorithm is demonstrated through computer simulations.
Databáze: Directory of Open Access Journals
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