Method and apparatus for pilot estimation using a prediction error method with a kalman filter and a Gauss-Newton algorithm
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United States of America Patent
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-
Oct 23, 2007
Grant Date -
Dec 11, 2003
app pub date -
Sep 30, 2002
filing date -
Jun 5, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
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 Kalman filter to produce a pilot estimate. 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. The Kalman filter is configured by an offline system identification process that calculates parameters using a prediction error method and a Gauss-Newton algorithm and generates state estimates using the Kalman filter. The calculating and generating are iteratively performed to train the Kalman filter for real-time operation.
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