【摘要】 本文基于分布参数系统控制理论，清晰地表达了声场有源控制所涉及的控制对象、控制系统和性能指标间的关系，导出了控制系统设计所要满足的稳定性条件和消声条件，给出了目标消声处局部区域声场的干涉结果，为研究有源消声的实际效果提出了依据．更多还原

【Abstract】 Based on distributed parameter system control theory,the paper distinctly expresses the relation among control object,control system and performance index which are involved in sound field activecontrol,deduces the stability condition and the noise cancellation condition which must be met for the control system design, offers the interference result of the local sound field around target noise cancellationposition.更多还原