A system is disclosed for use in a wireless communication system to provide an
estimated pilot signal. The system includes a receiver and a front-end processing
and despreading component in electronic communication with the receiver for despreading
a CDMA signal. A pilot estimation component is in electronic communication with
the front-end processing and despreading component for estimating an original pilot
signal using a pilot estimator that includes a Kalman filter to produce a pilot
estimate. The Kalman filter is determined through use of a prediction error method
based on an innovations representation of the original pilot signal. A demodulation
component is in electronic communication with the pilot estimation component and
the front-end processing and despreading component for providing demodulated data symbols.