The fast affine projection algorithm

This paper discusses a new adaptive filtering algorithm called fast affine projections (FAP). FAP's key features include LMS like complexity and memory requirements (low), and RLS like convergence (fast) for the important case where the excitation signal is speech. Another of FAP's importa...

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Bibliographic Details
Main Authors: Gay, S.L., Tavathia, S.
Format: Conference Proceeding
Language:English
Subjects:
Adaptive filters
Convergence
Delay
Filtering algorithms
Financial advantage program
Least squares approximation
Projection algorithms
Resonance light scattering
Robustness
Speech
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Summary:This paper discusses a new adaptive filtering algorithm called fast affine projections (FAP). FAP's key features include LMS like complexity and memory requirements (low), and RLS like convergence (fast) for the important case where the excitation signal is speech. Another of FAP's important features is that it causes no delay in the input or output signals. In addition, the algorithm is easily regularized resulting in robust performance even for highly colored excitation signals. The combination of these features make FAP an excellent candidate for the adaptive filter in the acoustic echo cancellation problem. A simple, low complexity numerical stabilization method for the algorithm is also introduced.
ISSN:1520-6149
2379-190X
DOI:10.1109/ICASSP.1995.479482