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Conference Record of the Thirty-First Asilomar Conference on Signals, Systems and Computers (Cat. No.97CB36163) (1997)
Pacific Grove, CA, USA
Nov. 2, 1997 to Nov. 5, 1997
ISSN: 1058-6393
ISBN: 0-8186-8316-3
pp: 838-842
T. Ostman , Dept. of Signal, Sensors & Syst., R. Inst. of Technol., Stockholm, Sweden
ABSTRACT
An algorithm for time delay estimation in an asynchronous direct-sequence code-division multiple access (DS-CDMA) system which exploits the structure of the system better than previously known algorithms, is presented. The different algorithms are compared through simulation and asymptotic analysis (large number of vector samples). For a typical scenario it is shown that the proposed algorithm decreases the standard deviation of the time delay errors with a factor of approximately 2.
INDEX TERMS
spread spectrum communication, pseudonoise codes, delays, parameter estimation, code division multiple access, signal sampling, covariance matrices
CITATION

T. Ostman, S. Parkvall and B. Ottersten, "Improved MUSIC algorithm for estimation of time delays in asynchronous DS-CDMA systems," Conference Record of the Thirty-First Asilomar Conference on Signals, Systems and Computers (Cat. No.97CB36163)(ACSSC), Pacific Grove, CA, USA, , pp. 838-842.
doi:10.1109/ACSSC.1997.680561
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