Wideband PNT OORDWG

ABSTRACT: Innoflight proposes to develop and test a novel Wideband PNT On-Orbit Reprogrammable Digital Waveform Generator (OORDWG) prototype. This OORDWG is considered wideband because it will have the ability to generate PNT signals in the existing GPS, GLONASS, Galileo, and Beidou (Compass) bands, plus nearly anything in between. We have leveraged the most current technologies in signal combining methods, adding innovative enhancements that show potential to either reduce the SWaP of the entire GPS payload or increase the performance of the satellite constellation for the end user. The OORDWG will be able to be reprogrammed on-orbit and will support cryptography external to the waveform generator, but for expandability’s sake, it will also be able to support cryptography within the reprogrammable boundary. The Wideband PNT ORDWG has several unique features that bring together the latest software-defined radio technology and high performance radiation-hardened electronics. BENEFIT: PNT is a technology that will never disappear. For the foreseeable future, all PNT technologies are based off of GPS technology with only minor modifications at most. This implies that the OORDWG will be at the core of PNT satellites for a very long time. Additionally, due to the power of the architecture, assuming that all performance metrics are equivalent or better, the OORDWG technology will supplant all traditional waveform generators. The core technology of the OORDWG can also be implemented in a non-rad-hard platform and be used as a ground-based PNT simulator for any waveform. Additional applications include more general-purpose signal generation for spacecraft including being employed as a functional block within an RF exciter. This dual-use will allow the hardware platform to be used in nearly any communications application in need of reprogrammable and/or mission configurable features.