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Optimal Post-Detection Integration Technique for the Reacquisition of Weak GNSS Signals
- Source :
- IEEE Transactions on Aerospace and Electronic Systems, Volume: 56, Issue: 3, June 2020
- Publication Year :
- 2018
-
Abstract
- This paper tackles the problem of finding the optimal non-coherent detector for the reacquisition of weak Global Navigation Satellite System (GNSS) signals in the presence of bits and phase uncertainty. Two solutions are derived based on using two detection frameworks: the Bayesian approach and the generalized likelihood ratio test (GLRT). We also derive approximate detectors of reduced computation complexity and without noticeable performance degradation. Simulation results reveal a clear improvement of the detection probability for the proposed techniques with respect to the conventional detectors implemented in high sensitivity GNSS (HS-GNSS) receivers to acquire weak GNSS signals. Finally, we draw conclusions on which is the best technique to reacquire weak GNSS signals in practice considering a trade-off between performance and complexity.<br />Comment: 18 pages, 6 figures
- Subjects :
- Electrical Engineering and Systems Science - Signal Processing
Subjects
Details
- Database :
- arXiv
- Journal :
- IEEE Transactions on Aerospace and Electronic Systems, Volume: 56, Issue: 3, June 2020
- Publication Type :
- Report
- Accession number :
- edsarx.1810.04085
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1109/TAES.2019.2948449