摘要
GBFLMS algorithm is posed to improve the stability and performance on noise reduction of adaptive noise control (ANC) system. Theoretical analysis shows that stability and precision in convergence of FLMS algorithm can be improved by GBFLMS. By iterative calculation of back adjusting g radient, the calculating operation of GBFLMS can be nearly the same as that of FLMS. An ANC system with GBFLMS has good behavior for noise reduction of compressor chamber on refrigerator. At the port of heat dissipation, noise level has been reduced 20 dB, about double of that got by the system with FLMS.
GBFLMS algorithm is posed to improve the stability and performance on noise reduction of adaptive noise control (ANC) system. Theoretical analysis shows that stability and precision in convergence of FLMS algorithm can be improved by GBFLMS. By iterative calculation of back adjusting g radient, the calculating operation of GBFLMS can be nearly the same as that of FLMS. An ANC system with GBFLMS has good behavior for noise reduction of compressor chamber on refrigerator. At the port of heat dissipation, noise level has been reduced 20 dB, about double of that got by the system with FLMS.
