Title: Pre- and Post-Correlation Methods for Acquisition of New GNSS Signals with Secondary Code
Author(s): Jirí Svaton, František Vejražka
Published in: Proceedings of IEEE/ION PLANS 2018
April 23 - 26, 2018
Hyatt Regency Hotel
Monterey, CA
Pages: 1422 - 1427
Cite this article: Svaton, Jirí, Vejražka, František, "Pre- and Post-Correlation Methods for Acquisition of New GNSS Signals with Secondary Code," Proceedings of IEEE/ION PLANS 2018, Monterey, CA, April 2018, pp. 1422-1427.
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Abstract: Correlation of GNSS signals that is implemented into a block processing by help of a FFT allows using and evolving of methods that has never been used before in a traditional continual processing. Our contribution focuses on utilization of a block pre-correlation processing for an acquisition of modern GNSS signals. This method combines the parallel in code search (PCS) algorithm with the Pre-Correlation Averaging (PCA) method for an acquisition of a secondary code of GNSS signals. The PCA method is working with samples of consecutives signal periods and averages them together period-by-period coherently to allow using a longer coherent time without additional costs in a correlation stage and without boost of the FFT unit size.