HYBRID ACTIVE NOISE CONTROL FOR HALF-OPEN CABINS WITH TWO ADAPTIVE FEEDBACK SECONDARY SOURCES

摘要

This work applies a multiple-channel active noise control presenting good results with low cost and complexity applied in half-open cabins. Two adaptive feedback secondary sources are integrated with a single channel FXNLMS feedforward system with hardware architecture composed by one reference signal, one error channel and two secondary sources. This paper presents practical implementation, experimental results and a comparative discussion with the most important architectures using the same hardware platform.