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公开(公告)号：US20220329326A1
公开(公告)日：2022-10-13
申请号：US17717763
申请日：2022-04-11
Applicant: RAYTHEON COMPANY
Inventor： Andrew Kowalevicz , Benjamin P. Dolgin , Gary M. Graceffo , Jae H. Kyung , Maurice J. Halmos
IPC: H04B10/69
Abstract: Optical signal receivers, systems, and methods of operating the same include a non-line of sight optical signal receiver configured to receive and detect a complex modulated optical signal through a non-line of site propagation path from an optical transmitter, comprising an optical resonator configured to receive the complex modulated optical signal through the non-line of sight propagation path, and to convert the complex modulated optical signal to an intensity modulated signal, and a detector configured to convert the intensity modulated signal into an electrical signal, the electrical signal having an amplitude indicative of an intensity of the intensity modulated signal from the optical resonator, and to provide a detected signal.
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2.发明申请公开(公告)号：US20190072651A1
公开(公告)日：2019-03-07
申请号：US15698381
申请日：2017-09-07
Applicant: Raytheon Company
Inventor： Maurice J. Halmos , Joseph Marron , Jae H. Kyung
Abstract: A method includes generating a first optical signal containing doublet pulses. Each doublet pulse includes a first pulse and a second pulse. The second pulses of the doublet pulses are in quadrature with the first pulses of the doublet pulses. The method also includes transmitting the first optical signal towards a target and receiving a second optical signal containing reflected doublet pulses from the target. Each reflected doublet pulse includes a first reflected pulse and a second reflected pulse. The method further includes performing in-phase and quadrature processing of the first and second reflected pulses and identifying one or more parameters of the target based on the in-phase and quadrature processing.
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公开(公告)号：US20170329013A1
公开(公告)日：2017-11-16
申请号：US15150563
申请日：2016-05-10
Applicant: Raytheon Company
Inventor： Maurice J. Halmos
CPC classification number: G01S17/58 , G01S7/4802 , G01S7/4816 , G01S7/487 , G01S7/497 , G01S17/10 , G01S17/107 , G01S17/88 , G01S17/89
Abstract: Described embodiments provide a laser detection and ranging (LADAR) system. The LADAR system transmits a laser signal including a train of coherent pulses and receives a return signal based on the transmitted laser signal that is reflected from a target. The LADAR system forms one or more range bins of the return signal. Each range bin includes a train of coherent pulses formed based upon the transmitted laser signal. For each range bin, the LADAR system generates a phasogram associated with the train of coherent pulses. The phasogram is generated by determining a relative phase between the return signal and a reference signal. The LADAR system generates a vibration spectrum of the return signal based upon the generated phasogram.
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公开(公告)号：US09726761B2
公开(公告)日：2017-08-08
申请号：US14450888
申请日：2014-08-04
Applicant: Raytheon Company
Inventor： Maurice J. Halmos
CPC classification number: G01S17/58 , G01S7/4802 , G01S7/4808 , G01S17/50
Abstract: Systems and corresponding methods for use in measuring rotation characteristics (e.g., rotation magnitude and direction) of remote targets are provided. A laser light of a known frequency is incident upon the target and reflected. A portion of the reflected laser light is directed to detector field of view, where it is measured and analyzed. The detector field of view is divided into multiple segments, each capable of independently measuring the intensity and frequency of laser light incident thereon. The rotation magnitude of the target may be correlated with the width of the total Doppler spread of reflected light incident upon the detector. The rotation direction of the target may be correlated to a difference in the Doppler spreads measured for corresponding halves of the detector.
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公开(公告)号：US09354317B2
公开(公告)日：2016-05-31
申请号：US14274026
申请日：2014-05-09
Applicant: Raytheon Company
Inventor： Maurice J. Halmos
CPC classification number: G01S17/895 , G01S17/50
Abstract: Devices and techniques for combined forward and inverse synthetic aperture imaging LADAR (combined SAL) include scanning a non-stationary target with an optical signal emitted from a non-stationary laser source, receiving reflections of the signal on a receiver, and determining the combined synthetic aperture.
Abstract translation: 用于组合的前向和反向合成孔径成像LADAR（组合SAL）的装置和技术包括使用从非固定激光源发射的光信号扫描非固定目标，在接收机上接收信号的反射，以及确定组合的合成 光圈。
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Patent Agency Ranking
公开(公告)号：US11874378B2
公开(公告)日：2024-01-16
申请号：US17232863
申请日：2021-04-16
Applicant: Raytheon Company
Inventor： Joseph Marron , Maurice J. Halmos , Justin S. Grayer , David N. Sitter, Jr. , Gamze Erten
CPC classification number: G01S17/89 , G01S7/4812 , G01S17/58 , F41H13/005
Abstract: A coherent imaging system produces coherent flood illumination directed toward a remote object and local oscillator (LO) illumination derived based on a same master oscillator as the flood illumination. A Doppler sensor receives the LO illumination and a return of flood illumination reflected off the object. Doppler shift data from the Doppler sensor, corresponding to a longitudinal velocity of the object relative to the imaging system, is used to produce Doppler-shifted LO illumination received by a low bandwidth, large format focal plane array (FPA), together with the return illumination from the object. Interference between the Doppler-shifted LO illumination and the return illumination facilitates producing an image of the object with the low bandwidth FPA despite the longitudinal velocity. Pixel intensities from the FPA are integrated over a period approaching the maximum interference frequency. The Doppler sensor and FPA may concurrently process return for a high energy laser target spot.
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公开(公告)号：US10473787B2
公开(公告)日：2019-11-12
申请号：US14451038
申请日：2014-08-04
Applicant: Raytheon Company
Inventor： Maurice J. Halmos
Abstract: Systems and corresponding methods for use in measuring rotation characteristics (e.g., rotation magnitude and direction) of remote targets are provided. A laser light of a known frequency is incident upon the target and reflected. A portion of the reflected laser light is directed to detector field of view, where it is measured and analyzed. The detector field of view is divided into multiple segments, each capable of independently measuring the intensity of laser light incident thereon as a function of time. The linear rotation of the target may be determined from cross-correlation of the light intensity-time response measured at orthogonal pairs of detector halves arranged from combinations of the detector segments. The angular rotation of the target is further determined from this linear rotation.
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公开(公告)号：US20190265362A1
公开(公告)日：2019-08-29
申请号：US16403821
申请日：2019-05-06
Applicant: Raytheon Company
Inventor： Joseph Marron , Maurice J. Halmos , Justin S. Grayer , Gamze Erten , David N. Sitter, JR.
IPC: G01S17/89 , G01S7/491 , G01S7/497 , G01S7/481 , G01S17/66 , F41H13/00 , G01S17/58 , G01S7/48 , H04N7/18 , H04N5/33 , H01S3/00 , G01P3/36
Abstract: An apparatus includes at least one processor configured to determine a wavefront phase profile of return illumination reflected from a remote object, where the wavefront phase profile is based on interference between Doppler-shifted local oscillator (LO) illumination and the return illumination. The at least one processor is also configured to calculate a wavefront error based on a comparison between (i) the determined wavefront phase profile of the return illumination and (ii) a desired wavefront phase profile of a high energy laser (HEL) beam. The at least one processor is further configured to control a deformable mirror to at least partially compensate the HEL beam for the calculated wavefront error.
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公开(公告)号：US10209351B2
公开(公告)日：2019-02-19
申请号：US15182423
申请日：2016-06-14
Applicant: RAYTHEON COMPANY
Inventor： Maurice J. Halmos
Abstract: A method for removing Doppler ambiguity in a ladar system. The time of each pulse of a sequence of transmitted pulses is offset from that of a uniform sequence of pulses. Each received pulse is represented by a complex number corresponding to its amplitude and phase, and each complex number of the resulting array of complex numbers is multiplied by a complex correction factor having a phase proportional to (i) the time offset of the corresponding pulse, and to (ii) a test frequency of an array of test frequencies, to form a second array of complex numbers. A Fourier transform of the second array is taken, and the value at the test frequency is copied into a corrected spectrum array. The process is repeated for each test frequency in the array of test frequencies, to generate a complete corrected spectrum array.
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公开(公告)号：US20150293229A1
公开(公告)日：2015-10-15
申请号：US14274026
申请日：2014-05-09
Applicant: Raytheon Company
Inventor： Maurice J. Halmos
IPC: G01S17/89
CPC classification number: G01S17/895 , G01S17/50
Abstract: Devices and techniques for combined forward and inverse synthetic aperture imaging LADAR (combined SAL) include scanning a non-stationary target with an optical signal emitted from a non-stationary laser source, receiving reflections of the signal on a receiver, and determining the combined synthetic aperture.
Abstract translation: 用于组合的前向和反向合成孔径成像LADAR（组合SAL）的装置和技术包括使用从非固定激光源发射的光信号扫描非固定目标，在接收机上接收信号的反射，以及确定组合的合成 光圈。
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