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5 条记录 (耗时 0.016 秒)

    Molded duck decoy
    1.
    发明授权
    Molded duck decoy 失效
    成型鸭诱饵

    公开(公告)号：US06470621B2

    公开(公告)日：2002-10-29

    申请号：US09902455

    申请日：2001-07-10

    申请人： Scott L. Murray ,  William Humphreys

    发明人： Scott L. Murray ,  William Humphreys

    IPC分类号： A01M3106

    CPC分类号： A01M31/06

    摘要： A water fowl decoy has an outer buoyant layer molded around an inner buoyant core material contained within the outer shell. The outer shell has a bottom opening for receiving a removable keel. The opening has front and rear walls with at least one indentation. The keel has a front edge and a rear edge with at least one detent which matingly engages the corresponding indentations on the front and/or side walls of the opening in the outer shell.

    摘要翻译： 水禽诱饵具有围绕包含在外壳内的内部浮力芯材料模制的外部浮力层。 外壳具有用于接收可拆卸龙骨的底部开口。 开口具有至少一个压痕的前壁和后壁。 龙骨具有前边缘和后边缘，其具有与外壳中的开口的前壁和/或侧壁上的相应凹口匹配地配合的至少一个棘爪。

    Deconvolution methods and systems for the mapping of acoustic sources from phased microphone arrays
    3.
    发明申请
    Deconvolution methods and systems for the mapping of acoustic sources from phased microphone arrays 有权
    用于从相位麦克风阵列映射声源的解卷积方法和系统

    公开(公告)号：US20060256975A1

    公开(公告)日：2006-11-16

    申请号：US11126518

    申请日：2005-05-10

    申请人： Thomas Brooks ,  William Humphreys

    发明人： Thomas Brooks ,  William Humphreys

    IPC分类号： H04R3/00

    CPC分类号： H04S7/00 ,  H04R3/005

    摘要： A method and system for mapping acoustic sources determined from a phased microphone array. A plurality of microphones are arranged in an optimized grid pattern including a plurality of grid locations thereof. A linear configuration of N equations and N unknowns can be formed by accounting for a reciprocal influence of one or more beamforming characteristics thereof at varying grid locations among the plurality of grid locations. A full-rank equation derived from the linear configuration of N equations and N unknowns can then be iteratively determined. A full-rank can be attained by the solution requirement of the positivity constraint equivalent to the physical assumption of statically independent noise sources at each N location. An optimized noise source distribution is then generated over an identified aeroacoustic source region associated with the phased microphone array in order to compile an output presentation thereof, thereby removing the beamforming characteristics from the resulting output presentation.

    摘要翻译： 一种用于映射从相控麦克风阵列确定的声源的方法和系统。 多个麦克风被布置成包括其多个网格位置的优化网格图案。 可以通过考虑在多个网格位置之间的变化的网格位置处的一个或多个波束成形特性的相互影响来形成N个方程和N个未知数的线性配置。 然后可以迭代地确定从N个方程和N个未知数的线性配置导出的全等式方程。 通过与每个N位置处的静态独立噪声源的物理假设相等的积极约束的解的要求可以获得全职。 然后在与相控麦克风阵列相关联的识别的航空声源区域上生成优化的噪声源分布，以便编译其输出呈现，从而从所得到的输出呈现中去除波束成形特性。