FUNDAMENTAL PERFORMANCE BOUNDS FOR CARRIER PHASE POSITIONING IN LEO-PNT SYSTEMS
Paper in proceeding, 2024
In this paper, we derive the Cramér-Rao bounds (CRBs) on the positioning errors for narrow-band low earth orbit positioning, navigation, and timing (LEO-PNT) systems. Fisher information analysis is performed to characterize the CRBs for errors in Doppler and carrier phase measurements. In addition, we analyze the effect of the carrier phase and Doppler on the CRB for positioning. Numerical simulations were conducted in different settings. To show the relevance of CRB, we compare our results to the maximum likelihood (ML) estimator. Our findings show that using the carrier phase significantly improves the positioning in LEO-PNT systems.
CRB
Carrier phase
LEO-PNT
Author
Jeongwan Kang
Hanyang University
N. Paulson Eberechukwu
Hanyang University
Jeonghaeng Lee
Hanyang University
Henk Wymeersch
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
Sunwoo Kim
Hanyang University
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
15206149 (ISSN)
13496-135009798350344851 (ISBN)
49th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2024
Seoul, South Korea,
Seoul, South Korea,
Areas of Advance
Information and Communication Technology
Subject Categories (SSIF 2011)
Telecommunications
Communication Systems
Signal Processing
DOI
10.1109/ICASSP48485.2024.10448267