Method and apparatus for reducing multipath signal error using d

Telecommunications – Transmitter and receiver at separate stations – Distortion – noise – or other interference prevention,...

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455 121, 455427, 455504, H04Q 720

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active

059181613

ABSTRACT:
A deconvolution approach to adaptive signal processing has been applied to the elimination of signal multipath errors as embodied in one preferred embodiment in a global positioning system receiver. The method and receiver of the present invention estimates then compensates for multipath effects in a comprehensive manner. Application of deconvolution, along with other adaptive identification and estimation techniques, results in completely novel GPS receiver architecture.

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Adaptive Equalization Via Fast Quantized-State Methods, Written By R. Kumar IEEE Transactions of Communications, vol. Com-29, No. 10, Oct. 1981.
Blind Equalization of Digital Communication Channels Usuing High-Order Moments, Written by B.Porat, IEEE Transaction on Signal Processing. vol. 39, No. 2, Feb. 1991.
Expanding the Performance Envelope of GPS-Based Attitude Determination Written by C. E. Cohen, ION GPS, Albuquerque, NM, Sep. 9-13, 1991.
Theory and Performance of Narrow Correlator Spacing in a GPS Receiver Written by A.J. Van Dierendonck, Journal of the Institute of Navigation vol. 39, No. 3, Fall 1992.
The Multipath Estimating Delay Lock Loop: Approaching Theoretical Accuracy Limits, Written By R. Nee, 1994, IEEE.
National Technical Meeting Jan. 22-24, 1996 Paper: Deconvolution Approach to Carrier and Code Multipath Error Elimination in High-Precision GPE.

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