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Spread Spectrum PN Code Acquisition Using Hybrid Correlator Architectures

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Abstract

A hybrid correlator architecture is described which combines the serial structure of an active correlator with the parallel structure of a matched filter correlator. The mean PN code acquisition time performance of this hybrid serial-parallel correlator structure is analysed. Results are shown which compare the acquisition performance of the serial, parallel, and serial-parallel structures. The results are for a PN code length of 64 code chips and assumes a Gaussian channel with the receiver detection threshold set to obtain a constant false alarm rate. An enhancement to the serial-parallel acquisition algorithm is also described which can increase the acquisition time performance by about 15% for typical operating conditions. Overall the results demonstrate that the hybrid correlator can provide rapid code acquisition with a limited receiver complexity.

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Authors and Affiliations

  1. Department of Electrical Engineering, The University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh, EH9 3JL, Scotland, U.K

    Gordon J.R. Povey

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  1. Gordon J.R. Povey
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Povey, G.J. Spread Spectrum PN Code Acquisition Using Hybrid Correlator Architectures. Wireless Personal Communications 8, 151–164 (1998). https://doi.org/10.1023/A:1008855326327

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  • DOI: https://doi.org/10.1023/A:1008855326327

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