Adaptive multipath resolving for wireless location systems

Author

Yousef, Nabil R. ; Sayed, Ali H.

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

Volume

2

fYear

2001

fDate

4-7 Nov. 2001

Firstpage

1507

Abstract

We develop an adaptive technique for resolving overlapping multipath components. The technique relies on replacing the least-squares operation needed for resolving overlapping components by a gradient-based adaptive filter with projections. The projections are designed to incorporate a-priori channel information and improve the algorithm robustness against data ill-conditioning and high noise levels, which are common in wireless location applications.

Keywords

adaptive filters; adaptive signal processing; cellular radio; fading channels; filtering theory; gradient methods; multipath channels; radio direction-finding; signal resolution; adaptive multipath resolution; adaptive projection technique; algorithm robustness; cellular users; channel information; computer simulations; data ill-conditioning; emergency situations; fading channel; gradient-based adaptive filter; high noise levels; hybrid channel; mobile-positioning; overlapping multipath components; projections; wireless location systems; Adaptive filters; Adaptive systems; Algorithm design and analysis; Amplitude estimation; Data mining; Delay estimation; Fading; Noise level; Noise robustness; Rayleigh channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2001. Conference Record of the Thirty-Fifth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-7803-7147-X

Type

conf

DOI

10.1109/ACSSC.2001.987739

Filename

987739