Field-Programmable Gate Array-Based Software-Defined Radio

There are existing wideband communications systems that were built using field-programmable gate array (FPGA)-based software-defined radio (SDR) designs. Despite the inherent advantages of these systems, some are functionally restricted by limited output bandwidth.An FPGA-based SDR was designed that can compress sampled intermediate-frequency (IF) signals. The compression scheme used in the final design is based on flexible operator-defined, time-frequency bins and independent energy thresholds for each bin.