Title :
Simplified proportionate affine projection algorithms
Author_Institution :
Fac. of Electr. Eng., Valahia Univ. of Targoviste, Targoviste, Romania
Abstract :
In this paper, new efficient proportionate affine projection algorithms are proposed. They use a simplified way of computing the output error vector. It is shown that the simplified approximated memory improved proportionate affine projection algorithm (SAMIPAPA) offers the best compromise between complexity and performance if compared with other proportionate-type APAs. Also, it is shown that, if the logarithmic proportionate scheme is integrated in SAMIPAPA, the convergence speed and tracking abilities are worse.
Keywords :
acoustic signal processing; adaptive filters; echo suppression; SAMIPAPA; acoustic echo cancellation; adaptive filter; convergence speed; logarithmic proportionate scheme; output error vector computing; proportionate-type APA; simplified approximated memory improved proportionate affine projection algorithm; Adaptive filters; Approximation algorithms; Approximation methods; Complexity theory; Echo cancellers; Projection algorithms; Vectors; acoustic echo cancellation; logarithmic proportionate updating scheme; proportionate affine projection algorithm;
Conference_Titel :
Systems, Signals and Image Processing (IWSSIP), 2012 19th International Conference on
Conference_Location :
Vienna
Print_ISBN :
978-1-4577-2191-5
