Abstract
Finite Impulse Response (FIR) filters are one of the most widely used fundamental filters in digital signal processing system. The modified FIR filters are derived from FIR digital filter. In this paper, design and performance analysis of Fast FIR Algorithm (FFA) based FIR filter and symmetric convolution based FIR filter structures considering 2-parallel and 3-parallel filters is done These entire filter structures are also designed with Carry save Adder (CSA) and Ripple Carry Adder (RCA) by replacing the existing adder considering the increased input bit length and coefficient length from 4-bits to 8-bits. Then the performance metrics of the above two structures is done by designing using Verilog HDL. Then, they are simulated and synthesized using Xilinx ISE 13.2 for Spartan 3E.
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