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Session C5: Modernized and Emerging GNSS

Dynamic Power Allocation with Constant Envelope Transmission for Next Generation Software-Defined GPS Payloads
Seeley Pentecost and Sanjeev Gunawardena, School of Engineering and Management, Air Force Institute of Technology
Location: Grand Ballroom E
Date/Time: Thursday, Feb. 1, 4:35 p.m.

Peer Reviewed

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.



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