Congreso Argentino de Sistemas Embebidos (CASE 2022)

Open and Configurable Channelization for Future Software-Defined Radio

Abstract: Nowadays, signal demodulation chains used in Software-Defined Radio (SDR) receivers involve analog and digital sections. For economical reasons, the latter tends to gain ground over the analog one, and typically involves a channelization module based on Digital Down-Converters (DDCs). Given the current trend towards all-digital receivers based on direct RF sampling, the channelization architecture will become a critical issue, requiring open and flexible designs to cope with its challenges. As contribution, we evaluate two open alternatives for DDCs implementation on field-programmable gate arrays (FPGAs), one implemented in high-level language and the other one through hardware description language (HDL). Together, they provide flexibility for parameterization, as well as hardware-level optimization.

Palabras clave- All-digital receiver, SDR, channelization, DDC, FPGA