Synthesized Binary Offset Carrier Modulation for Interoperable GNSS L1 Band Signals

Autor: Dhaval J. Upadhyay, Vijay S. Bhadouria, Parimal J. Majithiya, Subhash C. Bera
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Navigation, Vol 71, Iss 2 (2024)
Druh dokumentu: article
ISSN: 2161-4296
DOI: 10.33012/navi.640
Popis: This paper presents a constant-envelope modulation scheme, based on a synthesized binary offset carrier (SBOC), for a global navigation satellite system (GNSS) that combines three signals in a nonlinear fashion with unequal amplitudes. The proposed SBOC modulation meets the power spectral density criteria of multiplexed binary offset carrier (MBOC) modulation used in the L1 frequency band (1575.42 MHz) open civilian service interoperable signals for GNSS. This SBOC modulation also allows for the selection of an arbitrary power-sharing ratio between the data and pilot signals. This approach provides better performance than various MBOC(6, 1, 1/11) modulations for narrowband receivers.
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