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公开(公告)号：US5960091A
公开(公告)日：1999-09-28
申请号：US846052
申请日：1997-04-25
申请人： Stanley A. White , Jeffrey P. Woodard , Michael Alan Soderstrand , Karl Einar Nelson , Phong Vu Nguyen Dao
发明人： Stanley A. White , Jeffrey P. Woodard , Michael Alan Soderstrand , Karl Einar Nelson , Phong Vu Nguyen Dao
CPC分类号： H03H17/0294 , H03H17/025 , H03H17/0288 , H03H17/04 , H03H2017/0297
摘要： Noise is removed from the digitized output of a sensor, subject to undesired resonance, even when the resonant frequency is unknown or drifts, with sufficiently low phase delay for the sensor to be used in closed-loop control. A very narrow notch filter which removes the resonance-induced noise is recursive (IIR) and therefore has a low phase delay. However, the apparatus which determines the center frequency of the notch filter is non-recursive, and therefore stable. It includes a tunable FIR filter which tracks the same resonance that we wish the IIR filter to remove. Tuning the FIR filter to minimize the output of the FIR filter therefore tunes the notch frequency to align with the resonant frequency. The tuning parameter which adaptively produces this result is suitably scaled and biased, and is applied to the IIR filter.
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公开(公告)号：US06611602B1
公开(公告)日：2003-08-26
申请号：US09324998
申请日：1999-06-02
申请人： Stanley A. White , Jeffrey P. Woodard , Michael Alan Soderstrand , Karl Einar Nelson , Phong Vu Nguyen Dao
发明人： Stanley A. White , Jeffrey P. Woodard , Michael Alan Soderstrand , Karl Einar Nelson , Phong Vu Nguyen Dao
IPC分类号： H03G500
CPC分类号： H03H17/0294 , H03H17/025 , H03H17/0288 , H03H17/04 , H03H2017/0297
摘要： Noise is removed from the digitized output of a sensor, subject to undesired resonance, even when the resonant frequency is unknown or drifts, with sufficiently low phase delay for the sensor to be used in closed-loop control. A very narrow notch filter which removes the resonance-induced noise is recursive (IIR) and therefore has a low phase delay. However, the apparatus which determines the center frequency of the notch filter is non-recursive, and therefore stable. It includes a tunable FIR filter which tracks the same resonance that we wish the IIR filter to remove. Tuning the FIR filter to minimize the output of the FIR filter therefore tunes the notch frequency to align with the resonant frequency. The tuning parameter which adaptively produces this result is suitably scaled and biased, and is applied to the IIR filter.
摘要翻译： 即使谐振频率未知或漂移，即使传感器用于闭环控制的相位延迟足够低，噪声也会从传感器的数字化输出中消失。 去除谐振感应噪声的非常窄的陷波滤波器是递归的（IIR），因此具有低相位延迟。 然而，确定陷波滤波器的中心频率的装置是非递归的，因此是稳定的。 它包括一个可调FIR滤波器，跟踪我们希望IIR滤波器去除的相同谐振。 调谐FIR滤波器以最小化FIR滤波器的输出，因此调谐陷波频率与谐振频率对齐。 自适应地产生该结果的调谐参数被适当地缩放和偏置，并且被应用于IIR滤波器。
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3.发明授权Radio-nuclide mixture identification using medium energy resolution detectors 有权使用中等能量分辨率检测器的放射性核素混合物鉴定公开(公告)号：US08538728B2
公开(公告)日：2013-09-17
申请号：US12770215
申请日：2010-04-29
申请人： Karl Einar Nelson
发明人： Karl Einar Nelson
CPC分类号： G06K9/6282 , G06F19/703 , G06F19/707
摘要： According to one embodiment, a method for identifying radio-nuclides includes receiving spectral data, extracting a feature set from the spectral data comparable to a plurality of templates in a template library, and using a branch and bound method to determine a probable template match based on the feature set and templates in the template library. In another embodiment, a device for identifying unknown radio-nuclides includes a processor, a multi-channel analyzer, and a memory operatively coupled to the processor, the memory having computer readable code stored thereon. The computer readable code is configured, when executed by the processor, to receive spectral data, to extract a feature set from the spectral data comparable to a plurality of templates in a template library, and to use a branch and bound method to determine a probable template match based on the feature set and templates in the template library.
摘要翻译： 根据一个实施例，一种用于识别放射性核素的方法包括接收光谱数据，从与模板库中的多个模板相当的光谱数据提取特征集合，并且使用分支和绑定方法来确定基于模板的可能的模板匹配 在模板库中的功能集和模板上。 在另一个实施例中，用于识别未知放射性核素的装置包括处理器，多通道分析器和可操作地耦合到处理器的存储器，所述存储器具有存储在其上的计算机可读代码。 当由处理器执行时，计算机可读代码被配置为接收频谱数据，从与模板库中的多个模板相当的频谱数据中提取特征集，并且使用分支和绑定方法来确定可能的 基于模板库中的功能集和模板的模板匹配。
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4.发明申请RADIO-NUCLIDE MIXTURE IDENTIFICATION USING MEDIUM ENERGY RESOLUTION DETECTORS 有权使用中等能量分辨率检测器的无线核磁体混合物鉴定公开(公告)号：US20110270575A1
公开(公告)日：2011-11-03
申请号：US12770215
申请日：2010-04-29
申请人： Karl Einar Nelson
发明人： Karl Einar Nelson
IPC分类号： G06F17/18
CPC分类号： G06K9/6282 , G06F19/703 , G06F19/707
摘要： According to one embodiment, a method for identifying radio-nuclides includes receiving spectral data, extracting a feature set from the spectral data comparable to a plurality of templates in a template library, and using a branch and bound method to determine a probable template match based on the feature set and templates in the template library. In another embodiment, a device for identifying unknown radio-nuclides includes a processor, a multi-channel analyzer, and a memory operatively coupled to the processor, the memory having computer readable code stored thereon. The computer readable code is configured, when executed by the processor, to receive spectral data, to extract a feature set from the spectral data comparable to a plurality of templates in a template library, and to use a branch and bound method to determine a probable template match based on the feature set and templates in the template library.
摘要翻译： 根据一个实施例，一种用于识别放射性核素的方法包括接收光谱数据，从与模板库中的多个模板相比较的光谱数据提取特征集合，并且使用分支和绑定方法来确定基于模板的可能的模板匹配 在模板库中的功能集和模板上。 在另一个实施例中，用于识别未知放射性核素的装置包括处理器，多通道分析器和可操作地耦合到处理器的存储器，所述存储器具有存储在其上的计算机可读代码。 当由处理器执行时，计算机可读代码被配置为接收频谱数据，从与模板库中的多个模板相当的频谱数据中提取特征集，并且使用分支和绑定方法来确定可能的 基于模板库中的功能集和模板的模板匹配。
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5.发明授权Active noise canceling system for mechanically cooled germanium radiation detectors 有权用于机械冷却锗辐射探测器的主动降噪系统公开(公告)号：US08704186B2
公开(公告)日：2014-04-22
申请号：US12948695
申请日：2010-11-17
申请人： Karl Einar Nelson , Morgan T. Burks
发明人： Karl Einar Nelson , Morgan T. Burks
CPC分类号： G01T1/17
摘要： A microphonics noise cancellation system and method for improving the energy resolution for mechanically cooled high-purity Germanium (HPGe) detector systems. A classical adaptive noise canceling digital processing system using an adaptive predictor is used in an MCA to attenuate the microphonics noise source making the system more deployable.
摘要翻译： 一种用于提高机械冷却的高纯锗（HPGe）检测器系统的能量分辨率的麦克风噪声消除系统和方法。 在MCA中使用使用自适应预测器的经典自适应噪声消除数字处理系统来衰减麦克风噪声源，使得系统更可部署。
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6.发明授权Shielding and activity estimator for template-based nuclide identification methods 有权基于模板的核素识别方法的屏蔽和活动估计公开(公告)号：US08417467B2
公开(公告)日：2013-04-09
申请号：US12770260
申请日：2010-04-29
申请人： Karl Einar Nelson
发明人： Karl Einar Nelson
CPC分类号： G06F19/704
摘要： According to one embodiment, a method for estimating an activity of one or more radio-nuclides includes receiving one or more templates, the one or more templates corresponding to one or more radio-nuclides which contribute to a probable solution, receiving one or more weighting factors, each weighting factor representing a contribution of one radio-nuclide to the probable solution, computing an effective areal density for each of the one more radio-nuclides, computing an effective atomic number (Z) for each of the one more radio-nuclides, computing an effective metric for each of the one or more radio-nuclides, and computing an estimated activity for each of the one or more radio-nuclides. In other embodiments, computer program products, systems, and other methods are presented for estimating an activity of one or more radio-nuclides.
摘要翻译： 根据一个实施例，一种用于估计一个或多个无线电核素的活动的方法包括接收一个或多个模板，所述一个或多个模板对应于一个或多个有助于可能解决方案的放射性核素，接收一个或多个加权 因素，每个加权因子表示一个放射性核素对可能的解决方案的贡献，计算一个以上放射性核素中的每个放射性核素的有效面密度，计算另一个放射性核素中的每一个的有效原子数（Z） ，计算所述一个或多个放射性核素中的每一个的有效度量，以及计算所述一个或多个放射性核素中的每一个的估计活动。 在其他实施例中，呈现计算机程序产品，系统和其他方法来估计一个或多个放射性核素的活动。
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7.发明申请SHIELDING AND ACTIVITY ESTIMATOR FOR TEMPLATE-BASED NUCLIDE IDENTIFICATION METHODS 有权基于模板的核素鉴定方法的屏蔽和活性估计公开(公告)号：US20110270536A1
公开(公告)日：2011-11-03
申请号：US12770260
申请日：2010-04-29
申请人： Karl Einar Nelson
发明人： Karl Einar Nelson
CPC分类号： G06F19/704
摘要： According to one embodiment, a method for estimating an activity of one or more radio-nuclides includes receiving one or more templates, the one or more templates corresponding to one or more radio-nuclides which contribute to a probable solution, receiving one or more weighting factors, each weighting factor representing a contribution of one radio-nuclide to the probable solution, computing an effective areal density for each of the one more radio-nuclides, computing an effective atomic number (Z) for each of the one more radio-nuclides, computing an effective metric for each of the one or more radio-nuclides, and computing an estimated activity for each of the one or more radio-nuclides. In other embodiments, computer program products, systems, and other methods are presented for estimating an activity of one or more radio-nuclides.
摘要翻译： 根据一个实施例，一种用于估计一个或多个无线电核素的活动的方法包括接收一个或多个模板，所述一个或多个模板对应于一个或多个有助于可能解决方案的放射性核素，接收一个或多个加权 因素，每个加权因子表示一个放射性核素对可能的解决方案的贡献，计算一个以上放射性核素中的每个放射性核素的有效面密度，计算另一个放射性核素中的每一个的有效原子数（Z） ，计算所述一个或多个放射性核素中的每一个的有效度量，以及计算所述一个或多个放射性核素中的每一个的估计活动。 在其他实施例中，呈现计算机程序产品，系统和其他方法来估计一个或多个放射性核素的活动。
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8.发明申请公开(公告)号：US20110147597A1
公开(公告)日：2011-06-23
申请号：US12948695
申请日：2010-11-17
申请人： Karl Einar Nelson , Morgan T. Burks
发明人： Karl Einar Nelson , Morgan T. Burks
CPC分类号： G01T1/17
摘要： A microphonics noise cancellation system and method for improving the energy resolution for mechanically cooled high-purity Germanium (HPGe) detector systems. A classical adaptive noise canceling digital processing system using an adaptive predictor is used in an MCA to attenuate the microphonics noise source making the system more deployable.
摘要翻译： 一种用于提高机械冷却的高纯锗（HPGe）检测器系统的能量分辨率的麦克风噪声消除系统和方法。 在MCA中使用使用自适应预测器的经典自适应噪声消除数字处理系统来衰减麦克风噪声源，使得系统更可部署。
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