caa a22 4500 606205454 CHVBK 20210128101007.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s00034-015-0040-6 doi (NATIONALLICENCE)springer-10.1007/s00034-015-0040-6 Sparseness-Controlled Proportionate Affine Projection Sign Algorithms for Acoustic Echo Cancellation [Elektronische Daten] [Yi Yu, Haiquan Zhao, Badong Chen] In order to reduce the steady-state misalignment of real-coefficient proportionate affine projection sign algorithm (RP-APSA) for sparse impulse responses, a memory RP-APSA is proposed in this paper by exploiting the historical values of proportionate factors, called MP-APSA. Further, to improve the robustness of MP-APSA and the recently proposed memory-improved RP-APSA (MIP-APSA) for impulse responses with mutative sparseness, two sparseness-controlled algorithms (SC-MP-APSA and SC-MIP-APSA) are developed by estimating the sparseness of the impulse response at each iteration. Simulation results in the context of acoustic echo cancellation show that the proposed algorithms retain good robustness against impulsive interferences. More importantly, the proposed sparseness-controlled algorithms can not only obtain low steady-state misalignment in both the sparse and dispersive situations, but also adapt to the variations in the sparseness of the impulse response. Springer Science+Business Media New York, 2015 Sparseness-controlled nationallicence Proportionate affine projection sign algorithm nationallicence Memory nationallicence Acoustic echo cancellation nationallicence Impulsive interference nationallicence Yu Yi School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China aut Zhao Haiquan School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China aut Chen Badong School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, China aut Circuits, Systems, and Signal Processing Springer US; http://www.springer-ny.com 34/12(2015-12-01), 3933-3948 0278-081X 34:12<3933 2015 34 34 https://doi.org/10.1007/s00034-015-0040-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00034-015-0040-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yu Yi School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China aut NATIONALLICENCE 700 1- Zhao Haiquan School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China aut NATIONALLICENCE 700 1- Chen Badong School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, China aut NATIONALLICENCE 773 0- Circuits, Systems, and Signal Processing Springer US; http://www.springer-ny.com 34/12(2015-12-01), 3933-3948 0278-081X 34:12<3933 2015 34 34