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    METHOD AND APPARATUS FOR NOISE CANCELLATION
    1.
    发明申请
    METHOD AND APPARATUS FOR NOISE CANCELLATION 有权
    噪声消除的方法和装置

    公开(公告)号：US20130011144A1

    公开(公告)日：2013-01-10

    申请号：US13543658

    申请日：2012-07-06

    申请人： Mohsen Amiri Farahani ,  Eduardo Castillo Guerra ,  Bruce G. Colpitts ,  Anthony W. Brown

    发明人： Mohsen Amiri Farahani ,  Eduardo Castillo Guerra ,  Bruce G. Colpitts ,  Anthony W. Brown

    IPC分类号： H04B10/06

    CPC分类号： A61B6/5258 ,  A61B5/0402 ,  A61B5/725 ,  G01D3/032 ,  G01D5/35364

    摘要： Method and apparatus of denoising recurrent signals comprising: providing first and second noisy signals each comprising a deterministic signal and (different realizations of) white noise; selecting one of the noisy signals as an input signal and the other noisy signal as a desired signal; providing an estimate of the deterministic signal in the input signal; determining the error between the estimated deterministic signal and the desired signal; adjusting the estimate of the deterministic signal using the error and producing an adjusted estimate of the deterministic signal.

    摘要翻译： 去噪复现信号的方法和装置包括：提供第一和第二噪声信号，每个噪声信号包括确定性信号和白噪声的（不同实现）; 选择噪声信号之一作为输入信号，将其它噪声信号作为期望信号; 提供输入信号中的确定性信号的估计; 确定所估计的确定信号与期望信号之间的误差; 使用所述误差来调整所述确定性信号的估计并产生所述确定性信号的经调整的估计。

    Method and apparatus for noise cancellation
    2.
    发明授权
    Method and apparatus for noise cancellation 有权
    用于噪声消除的方法和装置

    公开(公告)号：US09131915B2

    公开(公告)日：2015-09-15

    申请号：US13543658

    申请日：2012-07-06

    申请人： Mohsen Amiri Farahani ,  Eduardo Castillo Guerra ,  Bruce G. Colpitts ,  Anthony W. Brown

    发明人： Mohsen Amiri Farahani ,  Eduardo Castillo Guerra ,  Bruce G. Colpitts ,  Anthony W. Brown

    IPC分类号： A61B6/00 ,  G01D5/353 ,  A61B5/0402 ,  G01D3/032 ,  A61B5/00

    CPC分类号： A61B6/5258 ,  A61B5/0402 ,  A61B5/725 ,  G01D3/032 ,  G01D5/35364

    摘要： Method and apparatus of denoising recurrent signals comprising: providing first and second noisy signals each comprising a deterministic signal and (different realizations of) white noise; selecting one of the noisy signals as an input signal and the other noisy signal as a desired signal; providing an estimate of the deterministic signal in the input signal; determining the error between the estimated deterministic signal and the desired signal; adjusting the estimate of the deterministic signal using the error and producing an adjusted estimate of the deterministic signal.

    摘要翻译： 去噪复现信号的方法和装置包括：提供第一和第二噪声信号，每个噪声信号包括确定性信号和白噪声的（不同实现）; 选择噪声信号之一作为输入信号，将其它噪声信号作为期望信号; 提供输入信号中的确定性信号的估计; 确定所估计的确定信号与期望信号之间的误差; 使用所述误差来调整所述确定性信号的估计并产生所述确定性信号的经调整的估计。

    METHOD AND APPARATUS FOR CENTRAL FREQUENCY ESTIMATION
    3.
    发明申请
    METHOD AND APPARATUS FOR CENTRAL FREQUENCY ESTIMATION 审中-公开
    中心频率估计的方法和装置

    公开(公告)号：US20130018633A1

    公开(公告)日：2013-01-17

    申请号：US13548138

    申请日：2012-07-12

    申请人： Mohsen Amiri Farahani ,  Eduardo Castillo Guerra ,  Bruce G. Colpitts ,  Anthony W. Brown

    发明人： Mohsen Amiri Farahani ,  Eduardo Castillo Guerra ,  Bruce G. Colpitts ,  Anthony W. Brown

    IPC分类号： G06F15/00 ,  G02F1/01

    CPC分类号： G01D5/35364 ,  G01K11/32 ,  G01K2011/322 ,  G01M11/39

    摘要： A method and apparatus comprising acquiring spectral measurements from an optical fiber sensor. The optical fiber sensor is an SBS-based sensor such as a BOTDA. The acquired measurements are of Brillouin interactions at a point along the optical fiber being excited by the lasers of the SBS-based sensor. The acquired measurements can comprise discreet measurements of the Brillouin gain spectrum (“BGS”) at the point along the fiber. The discreet measurements can be plotted as data points. A BGS can be defined by three parameters: the Brillouin frequency shift (“BFS”), the bandwidth and the peak gain. A Lorentzian curve can be used to model a BGS. A BFS can be determined by estimating the central frequency of the Lorentzian curve which is used to model the BGS.

    摘要翻译： 一种包括从光纤传感器获取光谱测量的方法和装置。 光纤传感器是基于SBS的传感器，例如BOTDA。 所获得的测量是在由基于SBS的传感器的激光器激发的沿着光纤的点处的布里渊相互作用。 所获得的测量可以包括沿着光纤的点的布里渊增益谱（BGS）的谨慎测量。 谨慎的测量可以绘制成数据点。 BGS可以由三个参数定义：布里渊频移（BFS），带宽和峰值增益。 洛伦兹曲线可用于建模BGS。 可以通过估计用于建模BGS的洛伦兹曲线的中心频率来确定BFS。

    Dynamic strain distributed fiber optic sensor
    4.
    发明授权
    Dynamic strain distributed fiber optic sensor 失效
    动态应变分布式光纤传感器

    公开(公告)号：US07480460B2

    公开(公告)日：2009-01-20

    申请号：US11391676

    申请日：2006-03-29

    申请人： Bruce G. Colpitts ,  Anthony W. Brown

    发明人： Bruce G. Colpitts ,  Anthony W. Brown

    IPC分类号： H04B10/00

    CPC分类号： G01K11/32 ,  G01B11/16 ,  G01D5/35364

    摘要： A distributed fiber optic sensor simultaneously interrogates the sensing fiber with two counter propagating light beams. One beam is set to a constant frequency. The second beam is modified to contain a “comb” of frequencies, with each frequency component in the comb offset by a predetermined amount. Each of the frequency components in the comb, herein referred to as teeth, is able to interact with the counter-propagating beam through the Brillouin scattering process. With proper selection of the comb characteristics such as the number of teeth, the frequency spacing of teeth, the spectral width of teeth, and the relative amplitude of the teeth, a representation of the Brillouin spectrum at each point in the fiber can be obtained simultaneously with a single pass through the fiber.

    摘要翻译： 分布式光纤传感器同时用两个反向传播光束来询问感测光纤。 一个光束被设置为恒定的频率。 第二光束被修改为包含频率的“梳”，梳中的每个频率分量偏移预定量。 梳齿中的每个频率分量（这里称为齿）能够通过布里渊散射过程与反向传播的波束相互作用。 通过适当选择诸如齿数，齿的频率间隔，齿的频谱宽度和齿的相对幅度等梳状特征，可以同时获得纤维中每个点处的布里渊光谱的表示 单次通过光纤。