Software and Hardware Implementation of IIR Based on MatlabaAcceldsp
Hongyan Chen, Lisheng Wang · 2012
Since the IIR design is very difficult and timeconsuming by using the hardware description language directly, this paper presents a simpler and more efficient method for IIR digital filter design.This design is based on Batterworth analog filter, using the impulse response invariant method.The design steps are: design nonquantitative IIR filter using Matlab; convert the designed IIR filter of M language into hardware description language using AccelDSP; then verify and synthesize the IIR design using ISE 10.1 of Xilinx.The design is verified by timing simulation and can be implemented on FPGA directly.The key of this design is to analyze the IIR digital filter algorithm, then describe it through the synthesizable m language and finally convert the m program to RTL design by using AccelDSP.The aim of this paper is to simplify the IIR digital filter design.