Method and apparatus for resolving multipath components for...

Details Method and apparatus for resolving multipath components for... Method and apparatus for resolving multipath components for...

2006-06-27

2006-06-27

Vanderpuye, Kenneth (Department: 2638)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S148000

Reexamination Certificate

active

07068742

ABSTRACT:
A method and apparatus that provides an accurate estimate of the time and amplitude of arrival of the first arriving overlapping multipath components (rays) in wireless locating finding systems. Overlapping fading multipath components for mobile-positioning are resolved by exploiting the fact that multipath components fade independently. Although fast channel fading is usually considered a challenge to the location finding process, it is used as an additional tool to detect and resolve overlapping multipath rays. A projection technique is also provided that exploits all possible a-priori channel information into a adaptive filtering algorithm, thus providing needed robustness to divergence of the adaptive algorithm that might result from possible severe data matrix ill-conditioning and high noise levels, which are common in wireless location applications.

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