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    • 1. 发明授权
    • Systems and methods implementing frequency-steered acoustic arrays for 2D and 3D imaging
    • 用于2D和3D成像的实现频率转向声阵的系统和方法
    • US08811120B2
    • 2014-08-19
    • US10889406
    • 2004-07-12
    • Scott Thomas BachelorR. Lee ThompsonJason Seawall
    • Scott Thomas BachelorR. Lee ThompsonJason Seawall
    • G01S3/80G01S15/89
    • G10K11/343G01S7/6245G01S15/89G01S15/8952G01S15/8993G10K11/34
    • Frequency-steered acoustic arrays transmitting and/or receiving multiple, angularly dispersed acoustic beams are used to generate 2D and 3D images. Input pulses to the arrays are generally non-linear, frequency-modulated pulses. Frequency-steered acoustic arrays may be provided in one-dimensional linear and two dimensional planar and curvilinear configurations, may be operated as single order or multiple order arrays, may employ periodic or non-periodic transducer element spacing, and may be mechanically scanned to generate 2D and 3D volumetric data. Multiple imaging fields of view may generated in different directions by switching the polarity of phase-shifted array transducer elements. Multiple frequency-steered arrays arranged in an X-configuration provide a wide, contiguous field of view and multiple frequency steered arrays arranged in a T-configuration provide orthogonally oriented fields of view. Methods and systems for operating acoustic arrays in a frequency-steered mode in combination a mechanical beam steering mode, electronic time-delay and phase shift beam forming modes, and phase comparison angle estimation modes are also provided.
    • 发射和/或接收多个角度分散的声束的频率转向声阵用于产生2D和3D图像。 对阵列的输入脉冲通常是非线性的调频脉冲。 频率转向声阵可以以一维线性和二维平面和曲线配置提供,可以作为单次或多次阵列来操作,可以采用周期性或非周期性的换能器元件间隔,并且可以机械地扫描以产生 2D和3D体积数据。 通过切换相移阵列换能器元件的极性,可以在不同方向上产生多个成像视场。 以X形配置的多个频率转向阵列提供了广泛的连续视野,并且以T形配置的多个频率转向阵列提供了正交定向的视场。 还提供了组合机械波束操纵模式,电子时间延迟和相移波束形成模式以及相位比较角度估计模式的以频率转向模式操作声阵列的方法和系统。
    • 2. 发明授权
    • Systems and methods implementing frequency-steered acoustic arrays for 2D and 3D imaging
    • 用于2D和3D成像的实现频率转向声阵的系统和方法
    • US07606114B2
    • 2009-10-20
    • US12030043
    • 2008-02-12
    • Scott Thomas BachelorR. Lee ThompsonJason Seawall
    • Scott Thomas BachelorR. Lee ThompsonJason Seawall
    • G01S15/89G01S15/00
    • G10K11/343G01S7/6245G01S15/89G01S15/8952G01S15/8993G10K11/34
    • Frequency-steered acoustic arrays transmitting and/or receiving multiple, angularly dispersed acoustic beams are used to generate 2D and 3D images. Input pulses to the arrays are generally non-linear, frequency-modulated pulses. Frequency-steered acoustic arrays may be provided in one-dimensional linear and two dimensional planar and curvilinear configurations, may be operated as single order or multiple order arrays, may employ periodic or non-periodic transducer element spacing, and may be mechanically scanned to generate 2D and 3D volumetric data. Multiple imaging fields of view may generated in different directions by switching the polarity of phase-shifted array transducer elements. Multiple frequency-steered arrays arranged in an X-configuration provide a wide, contiguous field of view and multiple frequency steered arrays arranged in a T-configuration provide orthogonally oriented fields of view. Methods and systems for operating acoustic arrays in a frequency-steered mode in combination a mechanical beam steering mode, electronic time-delay and phase shift beam forming modes, and phase comparison angle estimation modes are also provided.
    • 发射和/或接收多个角度分散的声束的频率转向声阵用于产生2D和3D图像。 对阵列的输入脉冲通常是非线性的调频脉冲。 频率转向声阵可以以一维线性和二维平面和曲线配置提供,可以作为单次或多次阵列来操作,可以采用周期性或非周期性换能器元件间隔,并且可以机械地扫描以产生 2D和3D体积数据。 通过切换相移阵列换能器元件的极性,可以在不同方向上产生多个成像视场。 以X形配置的多个频率转向阵列提供了广泛的连续视野,并且以T形配置的多个频率转向阵列提供了正交定向的视场。 还提供了组合机械波束操纵模式,电子时间延迟和相移波束形成模式以及相位比较角度估计模式的以频率转向模式操作声阵列的方法和系统。