An improved MUSIC algorithm for estimation of time delays in asynchronous DS-CDMA systems
T. Ostman, Stefan Parkvall, Björn Ottersten · IEEE Transactions on Communications · 1999
The problem of near-far resistant time-delay estimation in an asynchronous direct-sequence code-division multiple-access system is considered, and by better exploiting the structure of the problem, estimators superior to previously known techniques are obtained. For a typical numerical example, a gain in signal-to-noise ratio of approximately 3 dB is obtained.