File Download
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1109/MWSCAS.2004.1354110
- Scopus: eid_2-s2.0-11144299055
- Find via
Supplementary
-
Citations:
- Scopus: 0
- Appears in Collections:
Conference Paper: Adaptive window selection and smoothing of Lomb periodogram for time-frequency analysis of time series
Title | Adaptive window selection and smoothing of Lomb periodogram for time-frequency analysis of time series |
---|---|
Authors | |
Keywords | Computers Circuits |
Issue Date | 2004 |
Publisher | IEEE. |
Citation | Midwest Symposium On Circuits And Systems, 2004, v. 2, p. II137-II140 How to Cite? |
Abstract | This article introduces a new adaptive Lomb periodogram for time-frequency analysis of time series, which are possibly non-uniformly sampled. It extends the conventional Lomb spectrum by windowing the observations and adaptively selects the window length by the intersection of confidence intervals (ICI) rule. To further reduce the variance of the Lomb periodogram due to time smoothing alone, time-frequency smoothing using local polynomial regression (LPR) is proposed. An orientation analysis is performed in order to derive a directional kernel in the time-frequency plane for adaptive smoothing of the periodogram. The support of this directional kernel is also adaptively selected using the ICI rule. Simulation results show that the proposed adaptive Lomb periodogram with time-frequency smoothing offers better time and frequency resolutions as well as lower variance than the conventional Lomb periodogram. |
Description | The 47th Midwest Symposium on Circuits and Systems Conference, Salt Lake City, Utah, USA, 25-28 July 2004 |
Persistent Identifier | http://hdl.handle.net/10722/46438 |
ISSN | 2023 SCImago Journal Rankings: 0.268 |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chan, SC | en_HK |
dc.contributor.author | Zhang, Z | en_HK |
dc.date.accessioned | 2007-10-30T06:49:51Z | - |
dc.date.available | 2007-10-30T06:49:51Z | - |
dc.date.issued | 2004 | en_HK |
dc.identifier.citation | Midwest Symposium On Circuits And Systems, 2004, v. 2, p. II137-II140 | en_HK |
dc.identifier.issn | 1548-3746 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/46438 | - |
dc.description | The 47th Midwest Symposium on Circuits and Systems Conference, Salt Lake City, Utah, USA, 25-28 July 2004 | - |
dc.description.abstract | This article introduces a new adaptive Lomb periodogram for time-frequency analysis of time series, which are possibly non-uniformly sampled. It extends the conventional Lomb spectrum by windowing the observations and adaptively selects the window length by the intersection of confidence intervals (ICI) rule. To further reduce the variance of the Lomb periodogram due to time smoothing alone, time-frequency smoothing using local polynomial regression (LPR) is proposed. An orientation analysis is performed in order to derive a directional kernel in the time-frequency plane for adaptive smoothing of the periodogram. The support of this directional kernel is also adaptively selected using the ICI rule. Simulation results show that the proposed adaptive Lomb periodogram with time-frequency smoothing offers better time and frequency resolutions as well as lower variance than the conventional Lomb periodogram. | en_HK |
dc.format.extent | 460880 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 | Midwest Symposium on Circuits and Systems | en_HK |
dc.rights | ©2004 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 | Computers | en_HK |
dc.subject | Circuits | en_HK |
dc.title | Adaptive window selection and smoothing of Lomb periodogram for time-frequency analysis of time series | en_HK |
dc.type | Conference_Paper | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1548-3746&volume=2&spage=137&epage=140&date=2004&atitle=Adaptive+window+selection+and+smoothing+of+Lomb+periodogram+for+time-frequency+analysis+of+time+series | en_HK |
dc.identifier.email | Chan, SC:scchan@eee.hku.hk | en_HK |
dc.identifier.email | Zhang, Z:zgzhang@eee.hku.hk | en_HK |
dc.identifier.authority | Chan, SC=rp00094 | en_HK |
dc.identifier.authority | Zhang, Z=rp01565 | en_HK |
dc.description.nature | published_or_final_version | en_HK |
dc.identifier.doi | 10.1109/MWSCAS.2004.1354110 | en_HK |
dc.identifier.scopus | eid_2-s2.0-11144299055 | en_HK |
dc.identifier.hkuros | 90101 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-11144299055&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 2 | en_HK |
dc.identifier.spage | II137 | en_HK |
dc.identifier.epage | II140 | en_HK |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Chan, SC=13310287100 | en_HK |
dc.identifier.scopusauthorid | Zhang, Z=8597618700 | en_HK |
dc.identifier.issnl | 1548-3746 | - |