ZHOU Zhong-lai, LI Ping, ZHENG Lian, SHI Ju-sheng. ESPRIT Based Feature Extraction of Helicopter Acoustic Signal[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 1999, 8(1): 7-13.
Citation:
ZHOU Zhong-lai, LI Ping, ZHENG Lian, SHI Ju-sheng. ESPRIT Based Feature Extraction of Helicopter Acoustic Signal[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 1999, 8(1): 7-13.
ZHOU Zhong-lai, LI Ping, ZHENG Lian, SHI Ju-sheng. ESPRIT Based Feature Extraction of Helicopter Acoustic Signal[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 1999, 8(1): 7-13.
Citation:
ZHOU Zhong-lai, LI Ping, ZHENG Lian, SHI Ju-sheng. ESPRIT Based Feature Extraction of Helicopter Acoustic Signal[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 1999, 8(1): 7-13.
Aim To extract harmonic frequencies of helicopter acoustic signal as features for hel icopter identification. Methods Estimation of signal parameters via rotational invariance techniques(ESPRIT) was selected to extract harmonic frequencies from really measured helicopter acoustic signal and an algorithm based on the SVD TLS was used. Results ESPRIT correctly extracted harmonic frequencies of helicopter using the data of limited length under the variousflight conditions. Conclusion ESPRIT is an effective method of extracting harmonic frequencies and using harmonic frequencies of helicopter acoustic signal to recognize helicopter is feasible.
Roy R, Paulr aj A. ESPRIT !A subspace rotation approach to estimation of parameters of cisodsin noise. IEEE Trans Acoust, Speech, Signal Processing , 1986, 30: 1340- 1342
[2]
Roy R, Kailath T. ESPRIT !Estimation of signal parameters via r otat ional invariance tech??niques. IEEE T rans Acoust, Speech, Signal Processing, 1989, 37: 984- 995
[3]
Zhang X D, Liang Y C. Pr efilter ing??based ESPRIT for est imating parameters of sinusoids in non??Gaussian ARMA noise. IEEE Trans Signal Processing , 1995, 43: 349- 353