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1.发明授权公开(公告)号：US11131742B2
公开(公告)日：2021-09-28
申请号：US16528136
申请日：2019-07-31
Applicant: Raytheon Company
Inventor： Ian S. Robinson , Bradley Flanders
Abstract: A system is provided that includes multiple analog-to-digital converters (ADCs), multiple antennas, and one or more processors. The one or more processors are configured, in a first mode of operation, to receive from the multiple ADCs samples of emissions received by one of the antennas and identify a signal of interest. The one or more processors are configured, in a second mode of operation, receive from the multiple ADCs samples of emissions received by the multiple antennas and identify an angle of arrival for the signal of interest.
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2.发明申请OPTIMIZED ORTHONORMAL SYSTEM AND METHOD FOR REDUCING DIMENSIONALITY OF HYPERSPECTRAL IMAGES 有权优化的正交系统和降低超分辨率图像尺寸的方法公开(公告)号：US20140193078A1
公开(公告)日：2014-07-10
申请号：US14090753
申请日：2013-11-26
Applicant: Raytheon Company
Inventor： Ian S. Robinson , Bradley Flanders
IPC: G06K9/46
CPC classification number: G06K9/46 , G01J3/0264 , G01J3/027 , G01J3/06 , G01J3/2823 , G01J2003/2836 , G06K9/0063
Abstract: A method for reducing dimensionality of hyperspectral images includes receiving a hyperspectral image having a plurality of pixels. The method may further include establishing an orthonormal basis vector set comprising a plurality of mutually orthogonal normalized members. Each of the mutually orthogonal normalized members may be associated with one of the plurality of pixels of the hyperspectral image. The method may further include decomposing the hyperspectral image into a reduced dimensionality image, utilizing calculations performed while establishing said orthonormal basis vector set. A system configured to perform the method may also be provided.
Abstract translation: 一种用于降低高光谱图像的维数的方法包括接收具有多个像素的高光谱图像。 该方法还可以包括建立包括多个相互正交的归一化成员的正交基矢量集合。 每个相互正交的标准化构件可以与高光谱图像的多个像素中的一个相关联。 该方法可以进一步包括利用在建立所述正交基本向量集合时执行的计算来将高光谱图像分解为降维的图像。 还可以提供被配置为执行该方法的系统。
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公开(公告)号：US20150369667A1
公开(公告)日：2015-12-24
申请号：US14312740
申请日：2014-06-24
Applicant: RAYTHEON COMPANY
Inventor： Ian S. Robinson , John D. Bloomer , Bradley Flanders
CPC classification number: G01J3/4535 , G01J3/0202 , G01J3/06 , G01J3/45 , G01J2003/4538
Abstract: Interferometric transform spectrometer (ITS) systems and methods of operation thereof. In one example, an ITS system includes a Michelson interferometer that introduces a varying optical path length difference (OPD) between its two arms so as to produce an interferogram, a detector that receives and samples the interferogram, and a scan controller coupled to the detector and to Michelson interferometer. The scan controller controls the Michelson interferometer to vary the OPD in discrete steps such that the detector provides M samples of the interferogram for each of two scan segments. In the first scan segment, the M samples have a uniform or non-uniform sample spacing and the OPD has a first maximum value. In the second scan segment, the M samples have an incrementally increasing sample spacing and the OPD has a second maximum value that is at least twice the first maximum value.
Abstract translation: 干涉测量变换光谱仪（ITS）系统及其操作方法。 在一个示例中，ITS系统包括迈克尔逊干涉仪，其在其两个臂之间引入变化的光程长度差（OPD），以产生干涉图，接收和采样干涉图的检测器，以及耦合到检测器的扫描控制器 和迈克尔逊干涉仪。 扫描控制器控制迈克尔逊干涉仪以离散步骤改变OPD，使得检测器为两个扫描段中的每一个提供干涉图的M个采样。 在第一扫描段中，M个样本具有均匀或不均匀的采样间隔，并且OPD具有第一最大值。 在第二扫描段中，M个采样具有逐渐增加的采样间隔，并且OPD具有至少为第一最大值的两倍的第二最大值。
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4.发明申请公开(公告)号：US20190353743A1
公开(公告)日：2019-11-21
申请号：US16528136
申请日：2019-07-31
Applicant: Raytheon Company
Inventor： Ian S. Robinson , Bradley Flanders
Abstract: A system is provided that includes multiple analog-to-digital converters (ADCs), multiple antennas, and one or more processors. The one or more processors are configured, in a first mode of operation, to receive from the multiple ADCs samples of emissions received by one of the antennas and identify a signal of interest. The one or more processors are configured, in a second mode of operation, receive from the multiple ADCs samples of emissions received by the multiple antennas and identify an angle of arrival for the signal of interest.
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公开(公告)号：US09571119B2
公开(公告)日：2017-02-14
申请号：US14457186
申请日：2014-08-12
Applicant: Raytheon Company
Inventor： Bradley Flanders , Ian S. Robinson
CPC classification number: H03M1/128 , G01R23/16 , H03M1/1265 , H04B1/16
Abstract: A method includes generating a sampling signal having a non-uniform sampling interval and sampling a received signal with an analog-to-digital converter (ADC) using the sampling signal. The method also includes mapping the sampled received signal onto a frequency grid of sinusoids, where each sinusoid has a signal amplitude and a signal phase. The method further includes estimating the signal amplitude and the signal phase for each sinusoid in the frequency grid. In addition, the method includes computing an average background power level and detecting signals with power higher than the average background power level. The non-uniform sampling interval varies predictably.
Abstract translation: 一种方法包括使用采样信号产生具有不均匀采样间隔的采样信号和使用模数转换器（ADC）对接收信号进行采样。 该方法还包括将采样的接收信号映射到正弦波的频率网格上，其中每个正弦波具有信号幅度和信号相位。 该方法还包括估计频率网格中每个正弦波的信号幅度和信号相位。 此外，该方法包括计算平均背景功率电平和检测功率高于平均背景功率电平的信号。 非均匀采样间隔可预测地变化。
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Patent Agency Ranking
公开(公告)号：US09466122B1
公开(公告)日：2016-10-11
申请号：US14835175
申请日：2015-08-25
Applicant: Raytheon Company
Inventor： Ian S. Robinson , Bradley Flanders , Anthony Sommese
CPC classification number: G06T7/408 , G06K9/0063 , G06K9/6214 , G06T7/11 , G06T7/136 , G06T7/174 , G06T7/90 , G06T2207/10004 , G06T2207/10024 , G06T2207/10036 , G06T2207/20016
Abstract: Methods and systems are provided for estimating background spectral content in a hyperspectral imaging (HSI) scene. A HSI processor computes a scene covariance matrix for each of a plurality of sparsely sampled pixel sets, identifies and removes the spectral content of contaminating pixels from the covariance matrices, and checks the consistency among the plurality of decontaminated covariance matrices, iteratively re-sampling and re-computing said matrices until an acceptable consistency is achieved, and then computes a final decontaminated covariance matrix representative of the background spectral content of the scene. Alternate approaches to pixel sampling, and/or using fewer spectral dimensions than are available for the pixels are presented.
Abstract translation: 提供了用于估计高光谱成像（HSI）场景中背景光谱含量的方法和系统。 HSI处理器为多个稀疏采样的像素集合中的每一个计算场景协方差矩阵，从协方差矩阵中识别和去除污染像素的频谱内容，并且检查多个去污协方差矩阵之间的一致性，迭代重采样和 重新计算所述矩阵，直到达到可接受的一致性，然后计算表示场景的背景光谱内容的最终去污协方差矩阵。 呈现像素采样的替代方法和/或使用比可用于像素的更少的光谱尺寸。
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公开(公告)号：US20160049950A1
公开(公告)日：2016-02-18
申请号：US14457186
申请日：2014-08-12
Applicant: Raytheon Company
Inventor： Bradley Flanders , Ian S. Robinson
CPC classification number: H03M1/128 , G01R23/16 , H03M1/1265 , H04B1/16
Abstract: A method includes generating a sampling signal having a non-uniform sampling interval and sampling a received signal with an analog-to-digital converter (ADC) using the sampling signal. The method also includes mapping the sampled received signal onto a frequency grid of sinusoids, where each sinusoid has a signal amplitude and a signal phase. The method further includes estimating the signal amplitude and the signal phase for each sinusoid in the frequency grid. In addition, the method includes computing an average background power level and detecting signals with power higher than the average background power level. The non-uniform sampling interval varies predictably.
Abstract translation: 一种方法包括使用采样信号产生具有不均匀采样间隔的采样信号和使用模数转换器（ADC）对接收信号进行采样。 该方法还包括将采样的接收信号映射到正弦波的频率网格上，其中每个正弦波具有信号幅度和信号相位。 该方法还包括估计频率网格中每个正弦波的信号幅度和信号相位。 此外，该方法包括计算平均背景功率电平和检测功率高于平均背景功率电平的信号。 非均匀采样间隔可预测地变化。
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公开(公告)号：US20150036941A1
公开(公告)日：2015-02-05
申请号：US13957415
申请日：2013-08-01
Applicant: RAYTHEON COMPANY
Inventor： Ian S. Robinson , Bradley Flanders , Anthony Sommese
IPC: G06K9/62
CPC classification number: G06K9/6202 , G06K9/0063 , G06K2009/00644
Abstract: Provided are examples of a detecting engine for identifying detections in compressed scene pixels. For a given compressed scene pixel having a set of M basis vector coefficients, set of N basis vectors, and code linking the M basis vector coefficients to the N basis vectors, the detecting engine reduces a spectral reference (S) to an N-dimensional spectral reference (SN) based on the set of N basis vectors. The detecting engine computes an N-dimensional spectral reference detection filter (SN*) from SN and the inverse of an N-dimensional scene covariance (CN). The detecting engine forms an M-dimensional spectral reference detection filter (SM*) from SN* based on the compression code and computes a detection filter score based on SM*. The detecting engine compares the score to a threshold and determines, based on the comparison, whether the material of interest is present in the given compressed scene pixel and is a detection.
Abstract translation: 提供了用于识别压缩场景像素中的检测的检测引擎的示例。 对于具有M个基矢量系数集合，N个基矢量的集合以及将M个基矢量系数链接到N个基矢量的代码的给定压缩场景像素，检测引擎将频谱参考（S）减小到N维 基于N个基矢量的集合的频谱参考（SN）。 检测引擎计算SN的N维频谱参考检测滤波器（SN *）和N维场景协方差（CN）的倒数。 检测引擎基于压缩码从SN *形成M维频谱参考检测滤波器（SM *），并根据SM *计算检测滤波器分数。 检测引擎将得分与阈值进行比较，并且基于比较确定感兴趣的材料是否存在于给定的压缩场景像素中并且是检测。
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9.发明授权Optimized orthonormal system and method for reducing dimensionality of hyperspectral images 有权优化的正交系统和降低高光谱图像尺度的方法公开(公告)号：US08948540B2
公开(公告)日：2015-02-03
申请号：US14090753
申请日：2013-11-26
Applicant: Raytheon Company
Inventor： Ian S. Robinson , Bradley Flanders
CPC classification number: G06K9/46 , G01J3/0264 , G01J3/027 , G01J3/06 , G01J3/2823 , G01J2003/2836 , G06K9/0063
Abstract: A method for reducing dimensionality of hyperspectral images includes receiving a hyperspectral image having a plurality of pixels. The method may further include establishing an orthonormal basis vector set comprising a plurality of mutually orthogonal normalized members. Each of the mutually orthogonal normalized members may be associated with one of the plurality of pixels of the hyperspectral image. The method may further include decomposing the hyperspectral image into a reduced dimensionality image, utilizing calculations performed while establishing said orthonormal basis vector set. A system configured to perform the method may also be provided.
Abstract translation: 一种用于降低高光谱图像的维数的方法包括接收具有多个像素的高光谱图像。 该方法还可以包括建立包括多个相互正交的归一化成员的正交基矢量集合。 每个相互正交的标准化构件可以与高光谱图像的多个像素中的一个相关联。 该方法可以进一步包括利用在建立所述正交基本向量集合时执行的计算来将高光谱图像分解为降维的图像。 还可以提供被配置为执行该方法的系统。
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10.发明申请公开(公告)号：US20180203091A1
公开(公告)日：2018-07-19
申请号：US15406493
申请日：2017-01-13
Applicant: Raytheon Company
Inventor： Ian S. Robinson , Bradley Flanders
Abstract: All of a plurality of analog-to-digital converters (ADCs) each operating in a first mode of operation within a spectrum of interest sample a signal received at one of a plurality of antennas, with the outputs of the ADCs processed to detect signals of interest based on a threshold. For each of the plurality of antennas, a corresponding one of the plurality of ADCs operating in a second mode of operation samples signals received at the one of the antennas such that signals received are sampled at all of the plurality of antennas, with the outputs of the ADCs processed to calculate an angle of arrival for at least one detected signal of interest using phase interferometry. Bandpass or non-uniform under-sampling may be employed to sample all of the antennas at a relatively low data rate.
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