Active control of noise in jet aircraft using a fast multi-reference contorl algorithm

摘要

During the last few years,active contorl of interior noise in propeller aircrafts has bene demonstrated in several flifght ftests.Many of htese ocnotrl ysstems are designed to control the sound of a single source,like the sound of synchro-phased propellers.Some of the systems have the ability to ocntorl the propeller sound when sysnchrophasing shifts is turned off.