Increasing interest in ultra-wideband (UWB) communications has engendered the need for a test bed for UWB systems. An FPGA-based software-defined radio provides both postfabrication definition of the radio and ample parallel processing power. Thi

Abstract— Very-high-speed digital subscriber loop modems operate in frequency bands, which coincide with many significant radio-frequency interference sources, particularly commercial AM radio. In these bands, the balance of most twisted-pair c