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摘要:
Chirp signals show energy aggregation in the fractional Fourier domain(FrFD) w hich can be used to estimate the parameter of the signals. In this paper,a parameter estimation method for multi-component chirp signal w hich corrupted by w hite Gaussian noise is proposed based on the discrete fractional Fourier transform(DFrFT) and the differential evolution( DE) algorithm. The proposed algorithm uses the DE algorithm instead of the conventional fine search algorithm to detect the peak of the signals in the FrFD. The paper simulated the influence of the noise and the resolution of the proposed algorithm. The results of the simulation show the proposed method does not only improve the estimation accuracy of the peak coordinate,but also reduces time consuming.
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篇名 Parameter Estimation of Multi-component Chirp Signal Based on Differential Evolution
来源期刊 仪器仪表学报:英文版 学科 工学
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年,卷(期) 2017,(2) 所属期刊栏目
研究方向 页码范围 34-43
页数 10页 分类号 TN911.7
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仪器仪表学报:英文版
季刊
2095-7521
10-1206/TH
北京市
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