Blockwise Frequency Domain Active Noise Controller Over Distributed Networks
AbstractThis work presents a practical active noise control system composed of distributed and collaborative acoustic nodes. To this end, experimental tests have been carried out in a listening room with acoustic nodes equipped with loudspeakers and microphones. The communication among the nodes is simulated by software. We have considered a distributed algorithm based on the Filtered-x Least Mean Square (FxLMS) method that introduces collaboration between nodes following an incremental strategy. For improving the processing efficiency in practical scenarios where data acquisition systems work by blocks of samples, the frequency-domain partitioned block technique has been used. Implementation aspects such as computational complexity, processing time of the network and convergence of the algorithm have been analyzed. Experimental results show that, without constraints in the network communications, the proposed distributed algorithm achieves the same performance as the centralized version. The performance of the proposed algorithm over a network with a given communication delay is also included. View Full-Text
Share & Cite This Article
Antoñanzas, C.; Ferrer, M.; de Diego, M.; Gonzalez, A. Blockwise Frequency Domain Active Noise Controller Over Distributed Networks. Appl. Sci. 2016, 6, 124.
Antoñanzas C, Ferrer M, de Diego M, Gonzalez A. Blockwise Frequency Domain Active Noise Controller Over Distributed Networks. Applied Sciences. 2016; 6(5):124.Chicago/Turabian Style
Antoñanzas, Christian; Ferrer, Miguel; de Diego, Maria; Gonzalez, Alberto. 2016. "Blockwise Frequency Domain Active Noise Controller Over Distributed Networks." Appl. Sci. 6, no. 5: 124.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.