Sparse separable 2‐D FIR filter design based on iterative reweighted ℓ1 norm and greedy searching techniques
Hao Wang, Weiqi Li, Zhijin Zhao, Jian Gang Sun · IEEJ Transactions on Electrical and Electronic Engineering · 2019
Abstract A new separable 2‐D finite impulse response (FIR) filter design technique with sparse coefficients is proposed. This technique includes two stages. In the first stage, the iterative reweighted ℓ1 norm technique is utilized to design a sparse separable 2‐D FIR filter based on some initial design. In the second stage, the greedy searching technique is utilized to make more sparse coefficients based on the first stage design. Simulation experiment validates the effectiveness of the proposed technique. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.