Title: Dynamic Power Allocation with Constant Envelope Transmission for Next Generation Software-Defined GPS Payloads
Author(s): Seeley Pentecost and Sanjeev Gunawardena
Published in: Proceedings of the 2018 International Technical Meeting of The Institute of Navigation
January 29 - 1, 2018
Hyatt Regency Reston
Reston, Virginia
Pages: 869 - 877
Cite this article: Pentecost, Seeley, Gunawardena, Sanjeev, "Dynamic Power Allocation with Constant Envelope Transmission for Next Generation Software-Defined GPS Payloads," Proceedings of the 2018 International Technical Meeting of The Institute of Navigation, Reston, Virginia, January 2018, pp. 869-877.
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Abstract: This paper describes a configurable GNSS signal generator with a direct digital synthesis (DDS) architecture to investigate the limitations of Phase Optimized Constant Envelope Transmission (POCET) within a digital system. We explore the impact of quantization on the POCET constellation and the resulting signal. Software and hardware simulations are used to verify theoretical results. Finally, we suggest a method for finding optimal phase tables, bounded by the limitations of a digital system, and demonstrate a valid approach to dynamic power allocation.