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An Improved Variable Step-size Zero-point Attracting Projection Algorithm (1504.03664v1)

Published 14 Apr 2015 in cs.OH

Abstract: This paper proposes an improved variable step-size (VSS) scheme for zero-point attracting projection (ZAP) algorithm. The proposed VSS is proportional to the sparseness difference between filter coefficients and the true impulse response. Meanwhile, it works for both sparse and non-sparse system identification, and simulation results demonstrate that the proposed algorithm could provide both faster convergence rate and better tracking ability than previous ones.

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