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1. 发明专利

JP2012198063A Noise observation system and noise observation method 有权
标题翻译：噪声观测系统和噪声观测方法
公开(公告)号：JP2012198063A
公开(公告)日：2012-10-18
申请号：JP2011061280
申请日：2011-03-18
申请人： Rion Co Ltd , リオン株式会社
发明人： OKAZAKI MICHINARI , MOTOYOSHI JUNICHI , KAIDA KEIJI , SHINOHARA KENJI , TAZAKI MASARU
IPC分类号： G01H3/00
CPC分类号： G01H3/10 , G01S3/8083 , G01S3/86
摘要： PROBLEM TO BE SOLVED: To provide a technology capable of dealing with a determination of ground noise generated from an aircraft or the like even under a complicated noisy environment such as around an airfield.SOLUTION: A microphone unit 10 is installed within an airfield, and window areas Wa-Wc are specified individually for each zone that may become a noise generation source such as a parking area 20, a taxing path 30, an engine test operation area 60 or the like. The microphone unit 10 is utilized for sound identification according to a three-axis correlation of X axis, Y axis and Z axis, thereby calculating an arrival direction vector even for ground noise. By specifying the window areas Wa-Wc from a positional relationship between an observation point P and a zone in which noise is actually generated, it can be identified from a ratio of the arrival direction vector which one of the window areas Wa-Wc the ground noise comes from.
摘要翻译：要解决的问题：即使在诸如机场周围的复杂的嘈杂环境下，提供能够处理从飞机等产生的地面噪声的确定的技术。解决方案：麦克风单元10安装在机场内，并且可以为可能成为噪声发生源的每个区域单独指定窗口区域Wa-Wc，例如停车区域20，征税路径30，发动机测试操作区域60等。麦克风单元10用于根据X轴，Y轴和Z轴的三轴相关的声音识别，从而计算即使对于地面噪声的到达方向矢量。通过从观察点P和实际产生噪声的区域之间的位置关系指定窗口区域Wa-Wc，可以从窗口区域Wa-Wc中的哪一个到达方向矢量的比率来识别地面噪音来自。版权所有（C）2013，JPO＆INPIT

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