An FIR digital filter using one-hot coded residue representation

Several Digital Signal Processing (DSP) structures based on Residue number systems (RNS) have been proposed in the technical literature. Most of them employ a look up table approach, that is highly space inefficient and slow. In this regard, we propose a memoryless high-speed error detecting FIR filter architecture using 1-out-of-n code for representing the residue numbers. With the use of 1-out-of-n code, error detection is achieved without any redundant moduli. The proposed design exhibits VLSI efficient layout, operand independent delay and low power consumption. We also propose a technique to achieve direct analog output from the system.