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Conference Paper: Robust adaptive Lomb periodogram for time-frequency analysis of signals with sinusoidal and transient components
Title | Robust adaptive Lomb periodogram for time-frequency analysis of signals with sinusoidal and transient components |
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Authors | |
Keywords | Engineering Electrical engineering |
Issue Date | 2005 |
Publisher | IEEE. |
Citation | Icassp, Ieee International Conference On Acoustics, Speech And Signal Processing - Proceedings, 2005, v. IV, p. IV493-IV496 How to Cite? |
Abstract | This article introduces a robust adaptive Lomb periodogram (RALP) for time-frequency (TF) analysis of time series with sinusoidal and transient components, which are possibly non-uniformly sampled. It extends the conventional Lomb spectrum by windowing the observation data and adaptively selects the window lengths by the intersection of confidence intervals (ICI) rule. The influence of transient components to conventional time-frequency representation can be moderated using M-estimation of robust statistics. Instead of treating the transient components as impulsive noise and removing them, the proposed RALP TF distribution yields separately a time domain representation of the transient components and a conventional TF representation of the sinusoidal components, which greatly improves the visualization and detection of these components. Simulation results show that the proposed RALP differentiates the two kinds of components well, and offers better time and frequency resolutions than the conventional Lomb periodogram. © 2005 IEEE. |
Persistent Identifier | http://hdl.handle.net/10722/45778 |
ISSN | |
References |
DC Field | Value | Language |
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dc.contributor.author | Zhang, Z | en_HK |
dc.contributor.author | Chan, SC | en_HK |
dc.date.accessioned | 2007-10-30T06:35:15Z | - |
dc.date.available | 2007-10-30T06:35:15Z | - |
dc.date.issued | 2005 | en_HK |
dc.identifier.citation | Icassp, Ieee International Conference On Acoustics, Speech And Signal Processing - Proceedings, 2005, v. IV, p. IV493-IV496 | en_HK |
dc.identifier.issn | 1520-6149 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/45778 | - |
dc.description.abstract | This article introduces a robust adaptive Lomb periodogram (RALP) for time-frequency (TF) analysis of time series with sinusoidal and transient components, which are possibly non-uniformly sampled. It extends the conventional Lomb spectrum by windowing the observation data and adaptively selects the window lengths by the intersection of confidence intervals (ICI) rule. The influence of transient components to conventional time-frequency representation can be moderated using M-estimation of robust statistics. Instead of treating the transient components as impulsive noise and removing them, the proposed RALP TF distribution yields separately a time domain representation of the transient components and a conventional TF representation of the sinusoidal components, which greatly improves the visualization and detection of these components. Simulation results show that the proposed RALP differentiates the two kinds of components well, and offers better time and frequency resolutions than the conventional Lomb periodogram. © 2005 IEEE. | en_HK |
dc.format.extent | 230692 bytes | - |
dc.format.extent | 27162 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.format.mimetype | text/plain | - |
dc.language | eng | en_HK |
dc.publisher | IEEE. | en_HK |
dc.relation.ispartof | ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings | en_HK |
dc.rights | ©2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. | - |
dc.subject | Engineering | en_HK |
dc.subject | Electrical engineering | en_HK |
dc.title | Robust adaptive Lomb periodogram for time-frequency analysis of signals with sinusoidal and transient components | en_HK |
dc.type | Conference_Paper | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1520-6149&volume=4&spage=493&epage=496&date=2005&atitle=Robust+Adaptive+Lomb+Periodogram+for+Time-frequency+Analysis+of+Signals+with+Sinusoidal+and+Transient+Components | en_HK |
dc.identifier.email | Zhang, Z:zgzhang@eee.hku.hk | en_HK |
dc.identifier.email | Chan, SC:scchan@eee.hku.hk | en_HK |
dc.identifier.authority | Zhang, Z=rp01565 | en_HK |
dc.identifier.authority | Chan, SC=rp00094 | en_HK |
dc.description.nature | published_or_final_version | en_HK |
dc.identifier.doi | 10.1109/ICASSP.2005.1416053 | en_HK |
dc.identifier.scopus | eid_2-s2.0-33646799842 | en_HK |
dc.identifier.hkuros | 102935 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-33646799842&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | IV | en_HK |
dc.identifier.spage | IV493 | en_HK |
dc.identifier.epage | IV496 | en_HK |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Zhang, Z=8597618700 | en_HK |
dc.identifier.scopusauthorid | Chan, SC=13310287100 | en_HK |
dc.identifier.issnl | 1520-6149 | - |