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http://dx.doi.org/10.7840/kics.2013.38A.5.416

Adaptive Filter Based PN Code Phase Acquisition Under Frequency Selective Rayleigh Fading Channels  

Lee, Donghoon (Samsung Electronics)
Kim, Jeongchang (Department of Electronics and Communications Engineering, Korea Maritime University)
Cheun, Kyungwhoon (Division of Information Technology Convergence Engineering, Pohang University of Science and Technology (POSTECH))
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.38A, no.5, 2013 , pp. 416-425 More about this Journal
Abstract
A hybrid PN code phase acquisition system based on a least-mean-square adaptive filter, interpreted as a channel estimator is proposed and analyzed for direct-sequence spread-spectrum systems under frequency selective Rayleigh fading channels. Closed form expressions are derived for the filter tap weights and detection/false alarm probabilities. Compared to previously proposed systems, the proposed system achieves smaller mean acquisition times, is more robust to the operating signal-to-noise ratio and allows for multiplication free tap weight updates.
Keywords
Acquisition; adaptive filters; direct-sequence spread-spectrum; multipath channels;
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