High-Performance Digital IF Modem for SATCOM

To meet the demands of the rapidly evolving space layer and sustaining resilient SATCOM capabilities for the warfighter, USSF SSC should leverage Digital IF SATCOM modem architectures, including digital IF modems. By adopting a Digital IF architecture, SSC can achieve freedom from vendor lock-in, reduce the total cost of ownership, increase ground segment sustainability, and improve terminal/modem agility and system resiliency. Apothym Technologies Group, LLC (ATG) proposes to develop high-performance digital IF demodulator capability and demonstrate digital IF interoperability with a 3rd party IF converter. ATG's innovative solution will empower the SSC and the Space Force to meet their missions more effectively by enabling rapid waveform deployments, simplified hardware migration, and path-agnostic connectivity as the space segment evolves into digital IF architectures. ATG's digital IF demodulator is built upon a cutting-edge FPGA-based platform, offering significant power savings and computational efficiency compared to software-based solutions. This optimized design enables seamless integration into commercial and military SATCOM networks, addressing the growing demand for virtualized ground segments and greenfield installations. Through this proposal, ATG aims to enhance the demodulator's capabilities by supporting multiple digital IF DVB-S2X channels and increasing its symbol rate. The proposed solution's technical risks, such as interoperability with third-party IFC devices, will be mitigated through an active collaboration with this project’ through the demonstration of interoperability within this project’s scope. The non-defense market opportunity for ATG's digital IF modem is substantial, with estimated revenues of up to $100M by 2029. Potential commercial customers, such as Intelsat, SES, Mangata, Astranis, AWS, and Microsoft, have already expressed interest in deploying digital IF within their networks. ATG's solution differentiates itself from competitors by offering lower power consumption and increased cost-efficiency, making it an attractive option for both military and commercial applications. Upon successful completion of the proposed R/R&D and T&E efforts, ATG's digital IF demodulator will be ready for integration into the defense ecosystem, providing valuable benefits to DAF end-users. These benefits include improved communication efficiency, reduced latency, and enhanced security, all of which are critical to ensuring mission success in an increasingly complex and contested space environment.