{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,30]],"date-time":"2026-01-30T06:21:29Z","timestamp":1769754089873,"version":"3.49.0"},"reference-count":33,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2021,5,3]],"date-time":"2021-05-03T00:00:00Z","timestamp":1620000000000},"content-version":"vor","delay-in-days":122,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Wireless Communications and Mobile Computing"],"published-print":{"date-parts":[[2021,1]]},"abstract":"<jats:p>The automatically paired time of arrival (TOA) and direction of arrival (DOA) can be jointly estimated via a high\u2010precision multidimensional spectral peak search\u2010 (SPS\u2010) based multiple signal classification (MUSIC) algorithm in the impulse radio ultrawideband (IR\u2010UWB) positioning system, while heavy computational burden is required. To tackle this issue, we propose an improved root\u2010MUSIC algorithm for joint TOA and DOA estimation. After modelling the frequency domain form of the received signal, the algorithm first uses the signal subspace to establish the relationship between the two antennas. Then, the MUSIC spatial spectrum function is reconstructed with this relation, which enables it to offer a spectrum function in regard to the one\u2010dimensional (1D) parameter of time delay. For further reducing the complexity, the TOA estimates of one antenna are obtained via 1D polynomial root finding instead of SPS, and the TOA estimates of the other antenna can be calculated by the established relationship. Finally, the DOA estimation can be achieved with the estimated TOAs. Due to the relationship between two antennas with signal subspace, the parameters estimated by the proposed algorithm are autopaired. Numerical simulations substantiate the superiority of the proposed algorithm.<\/jats:p>","DOI":"10.1155\/2021\/9960273","type":"journal-article","created":{"date-parts":[[2021,5,3]],"date-time":"2021-05-03T21:22:08Z","timestamp":1620076928000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["TOA and DOA Estimation for IR\u2010UWB Signals: An Efficient Algorithm by Improved Root\u2010MUSIC"],"prefix":"10.1155","volume":"2021","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1162-2222","authenticated-orcid":false,"given":"Yang","family":"Li","sequence":"first","affiliation":[]},{"given":"Jia","family":"Yu","sequence":"additional","affiliation":[]},{"given":"Liyuan","family":"He","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2021,5,3]]},"reference":[{"key":"e_1_2_9_1_2","doi-asserted-by":"publisher","DOI":"10.1109\/MSP.2004.1359140"},{"key":"e_1_2_9_2_2","doi-asserted-by":"publisher","DOI":"10.1186\/s13638-017-0990-4"},{"key":"e_1_2_9_3_2","doi-asserted-by":"publisher","DOI":"10.3724\/SP.J.1146.2009.01102"},{"key":"e_1_2_9_4_2","doi-asserted-by":"crossref","unstructured":"SakamotoT.andSatoT. A target tracking method with a single antenna using time-reversal UWB radar imaging in a multipath environment 2010 IEEE International Geoscience and Remote Sensing Symposium 2010 Honolulu HI USA 3319\u20133322.","DOI":"10.1109\/IGARSS.2010.5651530"},{"key":"e_1_2_9_5_2","doi-asserted-by":"crossref","unstructured":"KuhnM. J. MahfouzM. R. andRoweN. Ultra wide band 3-D tracking of multiple tags for indoor positioning in medical applications requiring millimeter accuracy 2012 IEEE Topical Conference on Biomedical Wireless Technologies Networks and Sensing Systems (BioWireleSS) 2012 Santa Clara CA USA 57\u201360.","DOI":"10.1109\/BioWireless.2012.6172734"},{"key":"e_1_2_9_6_2","doi-asserted-by":"publisher","DOI":"10.1109\/MSP.2005.1458287"},{"key":"e_1_2_9_7_2","doi-asserted-by":"publisher","DOI":"10.3724\/SP.J.1001.2009.03376"},{"key":"e_1_2_9_8_2","first-page":"180","article-title":"Time-of-arrival estimation based on non- coherent energy detection in IR-UWB systems","volume":"26","author":"Wu C. B.","year":"2010","journal-title":"Microcomputer Information"},{"key":"e_1_2_9_9_2","doi-asserted-by":"publisher","DOI":"10.3724\/SP.J.1146.2010.01187"},{"key":"e_1_2_9_10_2","doi-asserted-by":"publisher","DOI":"10.1109\/LCOMM.2012.030912.112445"},{"key":"e_1_2_9_11_2","first-page":"78","article-title":"Simple energy envelope TOA estimation algorithm","volume":"42","author":"Liu X. J.","year":"2012","journal-title":"Computer Engineering and Applications"},{"key":"e_1_2_9_12_2","unstructured":"ZhangT. T. ZhangQ. Y. andZhangN. T. A two-step TOA estimation method based on energy detection for IR-UWB sensor net-works Seventh Annual Communication Networks and Services Research Conference (CNSR \u203209) 2010 Moncton Canada 139\u2013145."},{"key":"e_1_2_9_13_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11425-010-0054-2"},{"key":"e_1_2_9_14_2","unstructured":"LiJ. CaoM. Y. andPeiL. Resolution analysis of the MUSIC-based TOA algorithm 2010 IEEE International Conference on In-formation Theory and Information Security (ICITIS) 2010 Beijing China 718\u2013721."},{"key":"e_1_2_9_15_2","doi-asserted-by":"crossref","unstructured":"JiangH. CaoF. C. andDingR. Propagator method-based TOA estimation for UWB indoor environment in the presence of correlated fading amplitudes 4th IEEE International Conference on Circuits and Systems for Communications (ICCSC 2008) 2008 Shanghai China 535\u2013538.","DOI":"10.1109\/ICCSC.2008.119"},{"key":"e_1_2_9_16_2","unstructured":"CaoF. C.andLiM. J. Frequency domain DOA estimation and tracking of UWB signals 6th International Conference on Wireless Communications Networking and Mobile Computing (WiCOM) 2014 Chengdu China 1\u20134."},{"key":"e_1_2_9_17_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11277-009-9857-2"},{"key":"e_1_2_9_18_2","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-25769-8_28"},{"key":"e_1_2_9_19_2","doi-asserted-by":"crossref","unstructured":"DingR. QianZ. H. andWangX. Joint TOA and DOA estimation of IR-UWB system based on matrix pencil International Forum on Information Technology and Applications 2009 Chengdu China 544\u2013547.","DOI":"10.1109\/IFITA.2009.449"},{"key":"e_1_2_9_20_2","doi-asserted-by":"publisher","DOI":"10.3724\/SP.J.1146.2009.00140"},{"key":"e_1_2_9_21_2","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2011.072511.090933"},{"key":"e_1_2_9_22_2","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2011.042211.100966"},{"key":"e_1_2_9_23_2","first-page":"2111","article-title":"Joint estimation of TOA and DOA in IR-UWB system using a successive propagator method","volume":"104","author":"Wang F.","year":"2015","journal-title":"International Journal of Electronics"},{"key":"e_1_2_9_24_2","first-page":"137","article-title":"Root-MUSIC-based joint TOA and DOA estimation in IR-UWB","volume":"35","author":"Wang F.","year":"2014","journal-title":"Journal on Communications"},{"key":"e_1_2_9_25_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11277-014-1644-z"},{"key":"e_1_2_9_26_2","doi-asserted-by":"publisher","DOI":"10.1109\/TCOMM.2005.849792"},{"key":"e_1_2_9_27_2","doi-asserted-by":"publisher","DOI":"10.1109\/JSAC.1987.1146527"},{"key":"e_1_2_9_28_2","doi-asserted-by":"publisher","DOI":"10.1109\/29.32276"},{"key":"e_1_2_9_29_2","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.1986.1143830"},{"key":"e_1_2_9_30_2","doi-asserted-by":"publisher","DOI":"10.1109\/TSP.2006.889982"},{"key":"e_1_2_9_31_2","doi-asserted-by":"crossref","unstructured":"ConroyJ. T. JLL. C. andUcciD. R. Communication techniques using monopulse waveforms 2 MILCOM 1999. IEEE Military Communications. Conference Proceedings (Cat. No. 99CH36341) 1999 Atlantic City NJ USA 1181\u20131184.","DOI":"10.1109\/MILCOM.1999.821389"},{"key":"e_1_2_9_32_2","doi-asserted-by":"publisher","DOI":"10.1023\/A:1020953424161"},{"key":"e_1_2_9_33_2","doi-asserted-by":"publisher","DOI":"10.1109\/26.843135"}],"container-title":["Wireless Communications and Mobile Computing"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/wcmc\/2021\/9960273.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/wcmc\/2021\/9960273.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1155\/2021\/9960273","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,8,7]],"date-time":"2024-08-07T12:38:33Z","timestamp":1723034313000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1155\/2021\/9960273"}},"subtitle":[],"editor":[{"given":"Jian Feng","family":"Li","sequence":"additional","affiliation":[]}],"short-title":[],"issued":{"date-parts":[[2021,1]]},"references-count":33,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2021,1]]}},"alternative-id":["10.1155\/2021\/9960273"],"URL":"https:\/\/doi.org\/10.1155\/2021\/9960273","archive":["Portico"],"relation":{},"ISSN":["1530-8669","1530-8677"],"issn-type":[{"value":"1530-8669","type":"print"},{"value":"1530-8677","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,1]]},"assertion":[{"value":"2021-03-13","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2021-04-15","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2021-05-03","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"9960273"}}