DESIGN OF TIME AND AREA EFFICIENT VARIABLE SIZE PARTITION AND SEGMENTED AMALGAM FIR FILTER

FIR filters are mostly exploited due to its phase linearity, less sensitivity and bounded input bounded output (BIBO)
stability which makes FIR filter is suitable for Digital Signal Processing (DSP) applications. The major components in FIR filters are adder, multiplier and registers.FIR filter is categorized based on their coefficients and it is multiplied with the input signal Multiple Constant Multiplication (MCM) is preferred where the coefficients are considered as constant and it avoids the multipliers by performing the shift, add and subtract operations.MCM is used for transpose form realization whereas Single Constant Multiplication (SCM) is used for direct form realization. The hybrid FIR filter is designed using fixed size partitioning that means the value of partitioning parameter is fixed. Fixed size partitioning leads area and adder complexity. The variable size partitioning segmented hybrid FIR filter is designed by segmenting the input into two part then it performs radix2^r MCM, partial product addition and zero appending then both the inputs are added to produce output. This work is synthesized and simulated using Xilinx ISE 14.2 on Spartan3E.