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    COMPUTING CROSS-CORRELATIONS FOR SPARSE DATA
    1.
    发明申请
    COMPUTING CROSS-CORRELATIONS FOR SPARSE DATA 有权
    计算稀疏数据的交叉关系

    公开(公告)号：US20160350346A1

    公开(公告)日：2016-12-01

    申请号：US14671614

    申请日：2015-03-27

    Applicant: RAYTHEON COMPANY

    Inventor： Eran Marcus ,  David U. Fluckiger ,  Brian F. Boland

    IPC: G06F17/30 ,  G06F17/14

    CPC classification number: G06F17/30336 ,  G01S7/486 ,  G01S17/10 ,  G06F17/142 ,  G06F17/15 ,  G06F17/3053

    Abstract: A method for computing a cross-correlation between a first sequence and a second sequence includes: generating a first index vector based on the first sequence, the first index vector including a plurality of first elements, the first index vector excluding indices of zero valued elements of the first sequence; generating a second index vector based on the second sequence, the second index vector including a plurality of second elements, the second index vector excluding indices of zero valued elements of the second sequence; computing, on a processor, a plurality of pairwise differences between each of first elements of the first index vector and each of the second elements of the second index vector; and binning, on the processor, the plurality of pairwise differences to generate the cross-correlation of the first sequence and the second sequence.

    Abstract translation: 一种用于计算第一序列和第二序列之间的互相关的方法包括：基于所述第一序列生成第一索引向量，所述第一索引向量包括多个第一元素，所述第一索引向量不包括零值元素的索引 的第一个序列; 基于所述第二序列生成第二索引向量，所述第二索引向量包括多个第二元素，所述第二索引向量不包括所述第二序列的零值元素的索引; 在处理器上计算所述第一索引向量的每个第一元素和所述第二索引向量中的每个第二元素之间的多个成对差异; 以及在所述处理器上合并所述多个成对差异以产生所述第一序列和所述第二序列的互相关。

    OPTICAL PULSE CONTRAST IMPROVEMENT USING NONLINEAR CONVERSION
    4.
    发明申请
    OPTICAL PULSE CONTRAST IMPROVEMENT USING NONLINEAR CONVERSION 有权
    使用非线性转换的光学脉冲对比改进

    公开(公告)号：US20150355316A1

    公开(公告)日：2015-12-10

    申请号：US14298573

    申请日：2014-06-06

    Applicant: Raytheon Company

    Inventor： Brian F. Boland ,  Robert D. Stultz ,  John J. Wootan

    IPC: G01S7/48

    CPC classification number: G01S7/4802 ,  G01S7/4814 ,  G01S7/484 ,  G01S17/10

    Abstract: A laser radar (LADAR) system includes a laser transmitter configured to emit laser pulses at a first wavelength, a non-linear converter configured to convert the laser pulses to a second wavelength prior to spectral filtering of amplified spontaneous emission (ASE) that is emitted from the laser transmitter in a spectrum concentrated around the first wavelength, and a spectral filter configured to substantially filter the ASE and allow the laser pulses at the second wavelength to pass.

    Abstract translation: 激光雷达（LADAR）系统包括被配置为发射第一波长的激光脉冲的激光发射器，非线性转换器，被配置为在发射的放大的自发发射（ASE）的频谱滤波之前将激光脉冲转换为第二波长 从激光发射器在集中在第一波长附近的光谱中，以及光谱滤波器，被配置为基本上过滤ASE并允许第二波长的激光脉冲通过。

    Optical pulse contrast improvement using nonlinear conversion
    5.
    发明授权
    Optical pulse contrast improvement using nonlinear conversion 有权

    公开(公告)号：US10114107B2

    公开(公告)日：2018-10-30

    申请号：US15950747

    申请日：2018-04-11

    Applicant: Raytheon Company

    Inventor： Brian F. Boland ,  Robert D. Stultz ,  John J. Wootan

    IPC: G01C3/08 ,  G01S7/48 ,  G01S17/10 ,  G01S7/481 ,  G01S7/484

    Abstract: A laser radar (LADAR) system includes a laser transmitter configured to (i) emit laser pulses at a first wavelength and (ii) emit amplified spontaneous emission (ASE) in a spectrum concentrated around the first wavelength. The LADAR system also includes a non-linear converter configured to (i) convert the laser pulses to a second wavelength and (ii) allow the ASE to remain substantially unconverted in the spectrum concentrated around the first wavelength. The LADAR system further includes a receiver configured to receive and detect reflected laser pulses, where the reflected laser pulses include the laser pulses at the second wavelength after reflection from at least one target. In addition, the LADAR system includes a spectral filter configured to (i) allow passage of the laser pulses or the reflected laser pulses and (ii) substantially filter the ASE and prevent the filtered ASE from being detected by the receiver.

    OPTICAL PULSE CONTRAST IMPROVEMENT USING NONLINEAR CONVERSION
    9.
    发明申请
    OPTICAL PULSE CONTRAST IMPROVEMENT USING NONLINEAR CONVERSION 审中-公开

    公开(公告)号：US20180231638A1

    公开(公告)日：2018-08-16

    申请号：US15950747

    申请日：2018-04-11

    Applicant: Raytheon Company

    Inventor： Brian F. Boland ,  Robert D. Stultz ,  John J. Wootan

    IPC: G01S7/48 ,  G01S17/10 ,  G01S7/484 ,  G01S7/481

    CPC classification number: G01S7/4802 ,  G01S7/4814 ,  G01S7/484 ,  G01S17/10

    Abstract: A laser radar (LADAR) system includes a laser transmitter configured to (i) emit laser pulses at a first wavelength and (ii) emit amplified spontaneous emission (ASE) in a spectrum concentrated around the first wavelength. The LADAR system also includes a non-linear converter configured to (i) convert the laser pulses to a second wavelength and (ii) allow the ASE to remain substantially unconverted in the spectrum concentrated around the first wavelength. The LADAR system further includes a receiver configured to receive and detect reflected laser pulses, where the reflected laser pulses include the laser pulses at the second wavelength after reflection from at least one target. In addition, the LADAR system includes a spectral filter configured to (i) allow passage of the laser pulses or the reflected laser pulses and (ii) substantially filter the ASE and prevent the filtered ASE from being detected by the receiver.

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