Shifeng Ou

Jan 13, 2025 | mdpi.com | Haorui Li |Ying Gao |Xinyu Guo |Shifeng Ou

1. IntroductionIn the field of speech signal processing, adaptive filters can adjust the parameters in real time according to the changes in the input signal to better adapt to the non-stationary signals and unknown system environment [1,2,3], so they have been more widely used in the fields of acoustic echo cancellation and active noise control [4,5,6].

Mar 6, 2024 | mdpi.com | Xinyu Wang |Ying Gao |Shifeng Ou

1. IntroductionSparse adaptive filters have widespread applications in the field of signal processing, commonly employed in tasks such as acoustic echo cancellation [1,2] and communication channel identification [3]. Traditional adaptive filtering algorithms used for identifying sparse systems (referring to systems that contain many near-zero or a few large coefficients that need to be identified) often rely on prior knowledge of sparsity.