Design of FIR Filter With Several Window Functions

Yanjie Xu

20212021 IEEE 3rd International Conference on Frontiers Technology of Information and Computer (ICFTIC)11 citationsDOI

Abstract

Digital filter is an important component of signal processing such as image processing and spectrum analysis. In this paper, FIR low-pass filter is analyzed and designed by window function method. The first part introduces several commonly used window functions, and analyzes the necessity of using window functions from a mathematical point of view; According to the basic principle of FIR digital filter, the second part realizes the design of FIR filter with different window functions such as Hamming window, Haining window and Blackman window, simulates on MATLAB platform, and compares and analyzes the influence of different window functions on the design performance of FIR filter. Finally, the conclusion is drawn, and the principle of using different window functions in the design of FIR filter is discussed.

Topics & Concepts

Window functionWindow (computing)Finite impulse responseComputer scienceFilter designFilter (signal processing)Digital filterMATLABHalf-band filterLow-pass filterRoot-raised-cosine filterElectronic engineeringAlgorithmEngineeringComputer visionOperating systemImage and Signal Denoising MethodsAdvanced Electrical Measurement TechniquesDigital Filter Design and Implementation