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

Sun-Yong Wu, Gui-Sheng Liao, Zhi-Wei Yang
2010 EURASIP Journal on Advances in Signal Processing  
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
more » ... , this method can improve the frequency estimation performance. The effectiveness of the proposed algorithm is demonstrated through computer simulations.
doi:10.1155/2010/569371 fatcat:5fezl3dqgzbc5aesldhb6vvati