A hybrid feedforward-feedback loudness-based active noise control ( ANC) system is proposed, in which active loudness control algorithm is used in feedforward part and μ synthesis robust control is introduced in feedback part. The μ synthesis control framework for feedback ANC is established and a μ synthesis robust controller for two-channel feedback ANC for an enclosed car cabin is designed. An ANC comparative test between hybrid feed-forward-feedback control and sole feedforward control is conducted. The results indicate that hybrid feedfoward-feed-back control is superior to sole feedforward control in both control effects and robustness.%提出了一种前-反馈混合的响度控制有源消声系统,其前馈部分采用响度控制有源消声算法,反馈部分引入μ综合鲁棒控制. 建立反馈有源消声的μ综合控制框架,以轿车封闭车厢为对象,设计双通道反馈有源消声μ综合鲁棒控制器. 对前-反馈混合控制和单一前馈控制进行有源消声对比试验,结果表明,混合控制的控制效果和鲁棒性都优于单一的前馈控制.
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