A SUPERRESOLUTION MIXED SPECTRAL ESTIMATION ALGORITHM USED FOR ACOUSTIC TARGET FEATURE EXTRACTION

Ding Qinghai; Zhu Longshi; Li Tianze; Zhang Qingtai

Volume 20 Issue 3

May 1998

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Article Navigation > Journal of Electronics & Information Technology > 1998 > 20(3): 296-301

Ding Qinghai, Zhu Longshi, Li Tianze, Zhang Qingtai. A SUPERRESOLUTION MIXED SPECTRAL ESTIMATION ALGORITHM USED FOR ACOUSTIC TARGET FEATURE EXTRACTION[J]. Journal of Electronics & Information Technology, 1998, 20(3): 296-301.

Citation:

Ding Qinghai, Zhu Longshi, Li Tianze, Zhang Qingtai. A SUPERRESOLUTION MIXED SPECTRAL ESTIMATION ALGORITHM USED FOR ACOUSTIC TARGET FEATURE EXTRACTION[J]. Journal of Electronics & Information Technology, 1998, 20(3): 296-301.

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A SUPERRESOLUTION MIXED SPECTRAL ESTIMATION ALGORITHM USED FOR ACOUSTIC TARGET FEATURE EXTRACTION

Received Date: 1997-01-17
Rev Recd Date: 1997-09-11
Publish Date: 1998-05-19

Abstract

Abstract

In this paper, A decoupled parameter estimation(DPE) algorithm for estimating parameters of the harmonic-group signal in colored noise is researched. In this algorithm, a iterated harmonic-group clean algorithm is presented to obtain the estimates of the parameters of the harmonic signal based on FFT. Then, the harmogram is used to decide the number of the harmonic signal. This algorithm not only is computationally simple and can provide supperresolution frequency estimation, but also is robust to mismodeling errors.

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References(1)

References

Hinich M, J. Detecting a hidden periodic signal when its period is unknown. IEEE Trans.on Signal Processing, 1982, SP-30(5): 747-750.[2]Hwang J, Chen Y. Superresolution frequency estimation by alternating notch periodogram. IEEE Trans. on Signal Processing, 1993, SP-41(2): 727-741.[3]Li J, Stoica P. Efficient mixed-spectrum estimation with applications to target feature extraction. IEEE Trans. on Signal Processing, 1996, SP-44(2): 281-295.[4]Gough P,T. A fast spectral estimation algorithm based on the FFT. IEEE Trans. on Signal Processing, 1994, SP-42(6): 1317-1322.[5]Stoica P, Nehorai A. Statistical analysis of two nonlinear least squares estimators of sinewave parameters in the colored-noise case. Circuits, Syst. and Signal Processing. 1989, 8(1): 3-15.

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