Configurable Logic for Digital Communications: Some Signal Processing Perspectives

published earher this year [l] .L This article describes several FPGA DSP applications. The capacity of FPGAs to vary the data path precision at various nodes in a system is explored with two filter design problems. The first design reports on a novel method for implementing narrowband finite impulse response (FIR) filters using ZA modulation encoding. The second filter example highlights some salient points regarding the required bit precision for various filter designs and highlights how FPGAs provide the signal processing engineer with the right type of hardware Configurable Logic for Digital Communications: Some Signal Processing Perspectives