Spatial-temporal Sliding Correlator for WCDMA Systems with Antenna Array
Yingguang Zhang · Journal of Circuits and Systems · 2003
A novel spatial-temporal sliding correlator (STSC) for timing acquisition and beam-forming weight computation is proposed for wide-band code division multiple access (WCDMA) systems with antenna array. Both the temporal and spatial information of the signal is exploited in the proposed STSC. The signal to noise ratio of the received signal is improved since beam-forming is incorporated in STSC. Using STSC, propagation delays of the multi-path signal can be estimated and the weights for beam-forming can be determined simultaneously. System complexity can also be reduced significantly. Simulation results show that the proposed correlator has better performance than the conventional one.