Porting Lessons Learned from Soldier Radio Waveform (SRW)

The Soldier Radio Waveform (SRW) is one of the key waveforms driving JTRS and related Software Defined Radio (SDR) implementations, particularly for ground systems. Due to wide application space and the complexity of the highly parallel advanced PHY processing, SRW is one of the critical benchmarks in assessing the viability of a given SDR modem architecture to support JTRS requirements. TrellisWare Technologies, Inc. applied it´s commercial AID and PSP technologies to the digital processing for one of the primary modes of SRW and has ported variations of this technology to a half dozen different SDR platforms for as many different companies and applications. In the process a number of critical lessons about implementing and porting complex, parallel implementations of this nature to these types of platforms have been learned. Issues such as optimum partitioning between processor and Field Programmable Gate Arrays (FPGA), matching the technology to the architecture and porting from one chip vendor´s family of products to another´s are assessed. Projections on the future evolution of such algorithms and the technology on which it is instantiated are also included.