Adaptive H/sup ∞/ delay tracking in asynchronous DS-CDMA systems
A. Manikas, Soon Lim, P. Wilkinson · 2002
In this paper a new H/sup /spl infin//-type delay acquisition/tracking approach is proposed which is based on partitioning of the PN-code matrix of the CDMA users into submatrices which are then used to form a 'state-space' H/sup /spl infin//-type linear combiner. The proposed novel formulation and approach is robust to modelling errors such as over- and underestimation of the number of signals present and provides a powerful near-far resistant delay-tracking solution in a multiuser DS-CDMA signal environment.