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    System and method for determining soil characteristics and drilling instability during horizontal directional drilling
    81.
    发明授权
    System and method for determining soil characteristics and drilling instability during horizontal directional drilling 有权
    水平定向钻井过程中确定土壤特性和钻井不稳定性的系统和方法

    公开(公告)号：US09581018B2

    公开(公告)日：2017-02-28

    申请号：US14921556

    申请日：2015-10-23

    Applicant: Raytheon Company

    Inventor： Benjamin P. Dolgin ,  William G. Suliga ,  Thomas G Pepin ,  John T. Ishibashi ,  Michael A. Toreno ,  James A. Nalasco

    IPC: E21B7/06 ,  G01V11/00 ,  E21B49/00 ,  E21B44/00 ,  E21B47/024 ,  E21B7/04 ,  E21B47/09

    CPC classification number: E21B49/003 ,  E21B7/046 ,  E21B7/06 ,  E21B7/062 ,  E21B44/00 ,  E21B47/024 ,  E21B47/09 ,  G01V11/002

    Abstract: Disclosed is a system and method for horizontal directional drilling (HDD). The system and method utilize predictive algorithms to both characterize the soil within the borehole and to quantify instability within the drillstring. The soil characteristics are represented by a soil coefficient (α) which relates the curvature of the borehole with the length of thrust of the drill rig as well as by comparison of thrust while thrusting with torque while drilling. The value of (α) is obtained by comparison of the historical orientation of the drilling head over the length of the borehole and the borehole shape as determined by an arbitrary navigation sensor. Drillstring instability is determined as a function of historical thrust and torque efficiencies and windup over the length of the borehole.

    Abstract translation: 公开了一种用于水平定向钻井（HDD）的系统和方法。 该系统和方法利用预测算法来表征井眼内的土壤并量化钻柱内的不稳定性。 土壤特征由土壤系数（α）表示，其将钻孔的曲率与钻机的推力长度相关联，以及通过在钻孔时用推力与推力进行比较。 （α）的值通过比较钻头长度与钻孔长度的历史取向和由任意导航传感器确定的钻孔形状来获得。 钻柱不稳定性被确定为历史推力和扭矩效率的函数，并且在钻孔的长度上卷起。

    Imaging system and methods with variable lateral magnification
    82.
    发明授权
    Imaging system and methods with variable lateral magnification 有权
    成像系统和具有可变横向放大的方法

    公开(公告)号：US09538096B2

    公开(公告)日：2017-01-03

    申请号：US14164953

    申请日：2014-01-27

    Applicant: RAYTHEON COMPANY

    Inventor： Benjamin P. Dolgin

    IPC: H04N5/225 ,  H04N5/265 ,  H04N5/232 ,  H04N5/262 ,  G08B13/196 ,  G06T3/00

    CPC classification number: H04N5/265 ,  G06T3/0025 ,  G08B13/19628 ,  G08B13/19643 ,  H04N5/232 ,  H04N5/23212 ,  H04N5/23293 ,  H04N5/23296 ,  H04N5/2624 ,  H04N5/2628

    Abstract: Methods and apparatus for producing images having variable lateral magnification. One example of such a method includes receiving a first image having a first level of magnification and representing a first field of view, simultaneously receiving a second image having a second level of magnification and representing a second field of view, the second level of magnification being higher than the first level of magnification and the second field of view being narrower than the first field of view, and digitally processing the first and second images to produce a composite image having a variable lateral magnification derived from the first and second levels of magnification.

    Abstract translation: 用于产生具有可变横向放大率的图像的方法和装置。 这种方法的一个例子包括：接收具有第一级放大率并表示第一视野的第一图像，同时接收具有第二级别的倍率并表示第二视场的第二图像，第二级别是 高于第一放大倍数，第二视场比第一视野窄，并且数字地处理第一和第二图像以产生具有从第一和第二放大倍率导出的具有可变横向放大率的合成图像。

    DUAL-POLARIZATION ROTATIONALLY-INSENSITIVE MONOSTATIC TRANSCEIVER WITH STANDARD FIBER
    86.
    发明申请
    DUAL-POLARIZATION ROTATIONALLY-INSENSITIVE MONOSTATIC TRANSCEIVER WITH STANDARD FIBER 有权

    公开(公告)号：US20230090667A1

    公开(公告)日：2023-03-23

    申请号：US17933785

    申请日：2022-09-20

    Applicant: Raytheon Company

    Inventor： Andrew M. Kowalevicz ,  Gary M. Graceffo ,  Benjamin P. Dolgin

    IPC: H04B10/61 ,  G02B27/28 ,  G02B6/27

    Abstract: An apparatus includes polarization beamsplitters that each separate incoming and outgoing optical signals having different polarizations. The apparatus also includes directionally-dependent polarization rotation optical assemblies that each maintain a polarization of one of the incoming and outgoing optical signals and to rotate a polarization of another of the incoming and outgoing optical signals. The apparatus further includes a third polarization beamsplitter that combines the outgoing optical signals to produce transmit optical signals and separate receive optical signals to produce the incoming optical signals.

    METHOD FOR NON-LINE-OF-SIGHT DETECTION OF COMPLEX OPTICAL SIGNALS
    87.
    发明申请
    METHOD FOR NON-LINE-OF-SIGHT DETECTION OF COMPLEX OPTICAL SIGNALS 有权

    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.

    Method for generating a constant envelope waveform when encoding multiple sub channels on the same carrier
    88.
    发明授权
    Method for generating a constant envelope waveform when encoding multiple sub channels on the same carrier 有权

    公开(公告)号：US11411654B1

    公开(公告)日：2022-08-09

    申请号：US17211350

    申请日：2021-03-24

    Applicant: RAYTHEON COMPANY

    Inventor： Gary M. Graceffo ,  Andrew Kowalevicz ,  Benjamin P. Dolgin

    IPC: H04B10/548 ,  H04L9/40 ,  H04B10/60

    Abstract: Communications systems and methods of controlling the same include generating and processing a constant envelope phase-modulated optical signal, the systems including an optical source configured to provide a carrier waveform, an encoding module configured to encode the data as a plurality of symbol sequences, a mapping module configured to convert the plurality of symbol sequences to a plurality of phase state changes and a plurality of directions according to a path-dependent phase modulation scheme, and a phase modulator configured to modulate the carrier waveform with the plurality of phase state changes and directions to generate the constant envelope phase-modulated optical signal.

    Acoustic to optical communications systems and methods
    89.
    发明授权
    Acoustic to optical communications systems and methods 有权

    公开(公告)号：US11374659B2

    公开(公告)日：2022-06-28

    申请号：US17082545

    申请日：2020-10-28

    Applicant: RAYTHEON COMPANY

    Inventor： Gary M. Graceffo ,  Andrew Kowalevicz ,  Benjamin P. Dolgin

    IPC: H04B10/00 ,  H04B11/00 ,  H04B10/548 ,  H04B10/524 ,  H04B13/02 ,  H04J14/00

    Abstract: Methods and apparatus for acoustic to optical communications. In one example, a method includes performing active optical measurements of modulation-based surface deformations at a surface of a body of water using an active optical receiver to produce modulation data, the modulation-based surface deformations being representative of a modulation of a modulated acoustic signal originating beneath the surface of the body of water, between instances of performing the active optical measurements of the modulation-based surface deformations, optically measuring surface conditions of the body of water to produce channel information, and based on the modulation data and the channel information, recovering data encoded in the modulation of the modulated acoustic signal.

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