Comparative Analysis of Parallel and Cascaded Architectures for the Realization of High-Speed FIR Filters with FPGA

This research work presents a detailed analysis on the design and implementation of parallel and cascade topologies in addition to the realization of high-speed FIR filters using FPGAs. An FPGA-based FIR filter's design, implementation, and verification using Verilog HDL are thoroughly analyzed. It is demonstrated that the filter's hardware implementation is effective in terms of clock frequency, utilization of resources, and latency. The architectures are also contrasted, and their benefits and shortcomings are discussed. The parallel architecture is better suitable for high-speed FIR filters than the cascade architecture, according to implementation findings on a Xilinx Spartan-3E FPGA and a VIRTEX FPGA.