Title: Snapshot Processing of High-Order BOC Signals in the Cloud: On Sensitivity and Distortion Effects
Author(s): J.A. Garcia-Molina, J.A. Fernandez-Rubio, R. Weiler, M. Crisci
Published in: Proceedings of the 30th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2017)
September 25 - 29, 2017
Oregon Convention Center
Portland, Oregon
Pages: 3745 - 3750
Cite this article: Garcia-Molina, J.A., Fernandez-Rubio, J.A., Weiler, R., Crisci, M., "Snapshot Processing of High-Order BOC Signals in the Cloud: On Sensitivity and Distortion Effects," Proceedings of the 30th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2017), Portland, Oregon, September 2017, pp. 3745-3750.
Full Paper: ION Members/Non-Members: 1 Download Credit
Sign In
Abstract: This paper discusses the unambiguous estimation of high-order BOC signals in the cloud based on signal snapshots gathered by low-end SDR receivers. In particular, the sensitivity and distortion problems are introduced, assessing the probability of false lock when using a conventional ML-based estimator (based on the search of the absolute maximum of the cross-correlation function) and a post-correlation ML-based estimator exploiting the a priori known distortion of the cross-correlation function introduced by the filtering stage of the SDR receiver. The simulation results show that, while distortion issues can be handled, sensitivity remains a problem at low C/No conditions and when limited snapshot lengths are considered.