...
首页> 外文期刊>Mechanical systems and signal processing >Quiet zone tuning in a non-ideal sound field
【24h】

Quiet zone tuning in a non-ideal sound field

机译:非理想声场中的安静区域调音

获取原文
获取原文并翻译 | 示例
           

摘要

Most active noise control (ANC) systems are designed and analyzed in ideal sound fields, where ANC performances are predictable with acceptable accuracies. In many ANC applications sound fields are non-ideal with significant differences between real ANC performances and theoretical predictions. If one uses an ideal model to optimize locations of actuators or error sensors for an ANC system in a non-ideal sound field, the actual quiet zone is inevitably different from its theoretical prediction. It is desired that users of ANC systems can tune quiet zones by adjusting ANC configurations, such as locations of secondary sources or error sensors. Model-independent ANC (MIANC) systems are preferred for this purpose. In this study, a model-independent ANC system is improved, implemented and applied to create a quiet zone in a non-ideal sound field. Users of the system can adjust locations of actuators or error sensors to tradeoff between sizes of quiet zones and levels of noise attenuations. Experimental results are presented to demonstrate observations and effects of quiet zone tuning using the improved ANC system.
机译:大多数主动噪声控制(ANC)系统都是在理想的声场中设计和分析的,在这些声场中,ANC的性能是可以预测的,并且具有可接受的精度。在许多ANC应用中,声场是非理想的,实际ANC性能与理论预测之间存在明显差异。如果使用理想模型在非理想声场中优化ANC系统的执行器或误差传感器的位置,那么实际的安静区域将不可避免地与其理论预测不同。希望ANC系统的用户可以通过调整ANC配置(例如辅助信号源或错误传感器的位置)来调整安静区域。为此,首选与模型无关的ANC(MIANC)系统。在这项研究中,独立于模型的ANC系统得到改进,实施和应用,以在非理想声场中创建安静区域。系统的用户可以调整执行器或误差传感器的位置,以在安静区域的大小和噪声衰减水平之间进行权衡。提出了实验结果,以证明使用改进的ANC系统进行静区调谐的观察和效果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号