Abstract In node-based shape optimization, there are a vast amount of design parameters, and the objectives, as well physical constraints, non-linear in state design. Robust optimization algorithms required. The methods feasible directions widely used practical problems know to be quite robust. A subclass these is gradient projection method. It an active-set method, it can with equality non-equ...

In this paper, a new pseudo affine projection (AP) algorithm based on Gauss-Seidel (GS) iterations is proposed for acoustic echo cancellation (AEC). It is shown that the algorithm is robust against near-end signal variations (including double-talk). Keywords—pseudo affine projection algorithm, acoustic echo cancellation, double-talk.