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The frequency-domain adaptive filter (FDAF) is widely used in echo cancellation systems due to its low complexity and fast convergence rate. However, the FDAF algorithm with a fixed step size exhibits a tradeoff among the convergence rate, steady-state misalignment, tracking ability, and robustness to near-end speech interferences. Several variable step-size FDAF algorithms were presented to address...
Previously, a family of memory proportionate affine projection (MPAP) algorithms has been proposed by taking into account the “history” of the proportionate factors for sparse system identification. This paper presents a low-complexity implementation of this family of MPAP algorithms. Two most important ideas are used in the derivation of the fast algorithm. The first one is to update the auxiliary...
In the occasion of real-time requirements and harsh electromagnetic environments, currently adaptive filtering algorithm is most based on the DSP chip, using of Assembly Language and high-level language programming procedures, and the speed of processing and the performance of noise immunity are not match the requirement. LMS adaptive filter is a widely used digital signal processing algorithms. Due...
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