Neural network BP algorithm applied to adaptive active noise control

To overcome the shortage in robustness in the traditional adaptive active noise control (AANC) algorithm, the back propagation (BP) neural network was used to active sound attenuation technique. The recursive formulas of the AANC-BP algorithm were given. The experimental verification in the semi-anechoic chamber was conducted, which uses only a single secondary source. The results have shown that the effect of sound attenuation is better and the robustness of the AANC-BP system is enhanced.