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Adaptive Filter Based PN Code Phase Acquisition Under Frequency Selective Rayleigh Fading Channels
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 Title & Authors
Adaptive Filter Based PN Code Phase Acquisition Under Frequency Selective Rayleigh Fading Channels
Lee, Donghoon; Kim, Jeongchang; Cheun, Kyungwhoon;
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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.
Acquisition;adaptive filters;direct-sequence spread-spectrum;multipath channels;
 Cited by
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