FILMS based ANC System – Evaluation and Practical Implementation

This paper describes the implementation and testing of a multichannel active noise control system (ANCS) based on the filtered-inverse LMS (FILMS) algorithm. The FILMS algorithm is derived from the well-known filtered-x LMS (FXLMS) algorithm with the aim to improve the rate of convergence of the multichannel FXLMS algorithm and to reduce its computational load. Laboratory setup and techniques used to implement this system efficiently are described in this paper. Experiments performed in order to test the performance of the FILMS algorithm are discussed and the obtained results presented.

Authors:

• Branislav Vuksanović
• Dragana Nikolić

Keywords:

• Active noise control
• adaptive filters
• inverse filters
• LMS algorithm
• FILMS algorithm.

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