Characterization of Timing and Pseudorange Biases Due to GNSS Front-End Filters by Type, Temperature, and Doppler Frequency

Justin M. Guerrero and Sanjeev Gunawardena

Peer Reviewed

Abstract:	GNSS signals undergo several changes after generation onboard a satellite vehicle (SV) to when they are sampled by a receiver’s analog-to-digital converter. Over the years, techniques have been developed to mitigate error sources such as the ionosphere and multipath. Another significant error source that must be taken into account for precise point positioning and high accuracy differential systems is signal deformation. This paper aims to help characterize signal deformation error due to various types of filters used in GNSS receiver front-ends as a function of temperature and Doppler frequency variation. Filters analyzed include radio frequency (RF) types such as air cavity, ceramic dielectric, surface and block acoustic wave (SAW and BAW) resonators, as well as intermediate frequency (IF) types such as transversal SAW and discrete element inductor-capacitor (LC) filters. The results of this paper are significant for validating receiver requirements for ground-based and space-based augmentation systems (GBAS and SBAS), and are also relevant for precise ionosphere measurements and time transfer applications.
Published in:	Proceedings of the 2017 International Technical Meeting of The Institute of Navigation January 30 - 2, 2017 Hyatt Regency Monterey Monterey, California
Pages:	418 - 444
Cite this article:	Guerrero, Justin M., Gunawardena, Sanjeev, "Characterization of Timing and Pseudorange Biases Due to GNSS Front-End Filters by Type, Temperature, and Doppler Frequency," Proceedings of the 2017 International Technical Meeting of The Institute of Navigation, Monterey, California, January 2017, pp. 418-444. https://doi.org/10.33012/2017.14911
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