-
公开(公告)号：US11314041B2
公开(公告)日：2022-04-26
申请号：US16734144
申请日：2020-01-03
Applicant: Raytheon Company
Inventor： Keith Carrigan , John F. Silny
Abstract: A mirror system including a primary mirror, and a secondary mirror with different coefficients of thermal expansion. A negative CTE strut can include a main body portion, a first coupling portion and a second coupling portion disposed opposite one another about the main body portion and defining a strut length. The first and second coupling portions can each interface with an external structure. The negative CTE strut can include an offsetting extension member having a first end coupled to the main body portion and a second end coupled to the first coupling portion by an intermediate extension member. The first and second ends can define an offset length parallel to the strut length. When the negative CTE strut increases in temperature, the offset length can be configured to increase due to thermal expansion of the offsetting extension member sufficient to cause the strut length to decrease.
-
公开(公告)号：US09726542B2
公开(公告)日：2017-08-08
申请号：US14546271
申请日：2014-11-18
Applicant: RAYTHEON COMPANY
Inventor： John F. Silny
CPC classification number: G01J3/2823 , G01J3/0208 , G01J3/0232 , G01J3/027 , G01J3/04 , G01J3/08 , G01J3/18
Abstract: A multi-mode imaging spectrometer that incorporates two orthogonally positioned entrance slits and is configurable between a first mode in which the system produces images of relatively wide spatial coverage with moderate spectral resolution, using a first one of the two slits, and a second mode in which the system produces images of a smaller spatial area with fine spectral resolution, using the other one of the two slits.
-
公开(公告)号：US20160165325A1
公开(公告)日：2016-06-09
申请号：US14221783
申请日：2014-03-21
Applicant: RAYTHEON COMPANY
Inventor： Gary D. Coleman , John F. Silny
CPC classification number: H04Q11/0062 , H04B10/11 , H04B10/118 , H04B10/29 , H04B10/503 , H04Q2011/0088
Abstract: A laser relay module in a free space optical communication network includes: a beacon source for generating an optical beacon signal for aligning a communication channel of a source optical node to a communication channel of a receiving optical node; a beacon inserter for encoding the optical beacon signal with switching information; a telescope for transmitting the encoded optical beacon signal to the receiving optical node; a beacon detector for detecting received switching information from the modulated optical beacon signal, wherein the receiving optical node uses the encoded optical beacon signal to align communication channel of the receiving optical node with communication channel of the source optical node; and a processor for using the detected switching information to change configuration of an optical switch matrix to direct received data to a next optical node in the free space optical communication network.
Abstract translation: 一种自由空间光通信网络中的激光中继模块包括：信标源，用于产生用于将源光节点的通信信道与接收光节点的通信信道对准的光信标信号; 信标插入器，用于对具有切换信息的光信标信号进行编码; 用于将编码的光信标信号发射到接收光节点的望远镜; 信标检测器，用于从调制的光信标信号检测接收到的切换信息，其中接收光节点使用经编码的光信标信号将接收光节点的通信信道与源光节点的通信信道对准; 以及处理器，用于使用所检测的切换信息来改变光开关矩阵的配置以将接收的数据引导到自由空间光通信网络中的下一个光节点。
-
公开(公告)号：US20150120096A1
公开(公告)日：2015-04-30
申请号：US14067338
申请日：2013-10-30
Applicant: Raytheon Company
Inventor： Gary D. Coleman , John F. Silny
IPC: B64G3/00
Abstract: A methodology for initial orbit determination of an object about an astronomical body searches a grid of possible boundary values on the range-to-object over the observation interval to find the grid point and corresponding initial orbit that best fits all of the three or more (N) angles-only observations according to an error metric. The search is conducted by solving a boundary-value problem (e.g. Lambert's Problem) for different grid points. The state vector is propagated to determine estimated observation directions for the remaining N−2 observations. The grid point (and initial orbit) that best fit all of the observations is selected. The grid may be searched by testing each and every point on the grid or by using other optimization techniques such as hill climbing algorithms to find the optimal grid point. For efficiency, the search may start with a broad but coarse initial grid and increase the resolution of the grid as the search converges to a solution.
Abstract translation: 关于天文体的物体的初始轨道确定的方法在观察间隔上搜索在距离对象上的可能边界值的网格，以找到最适合所有三个或更多个的网格点和对应的初始轨道（ N）根据误差度量的仅角度观测值。 搜索通过解决不同网格点的边界值问题（例如朗伯问题）进行。 传播状态矢量以确定剩余N-2观测值的估计观察方向。 选择最适合所有观测值的网格点（和初始轨道）。 可以通过测试网格上的每个点或通过使用其他优化技术（如爬山算法）来找到最佳网格点来搜索网格。 为了效率，搜索可以从宽但粗的初始网格开始，并且当搜索收敛到解时增加网格的分辨率。
-
公开(公告)号：US08913243B2
公开(公告)日：2014-12-16
申请号：US13671048
申请日：2012-11-07
Applicant: Raytheon Company
Inventor： John F. Silny , Stephen J. Schiller
IPC: G01J4/00
CPC classification number: G01J4/00
Abstract: Described are methods and systems for vicarious polarimetric calibration and performance validation of a remote sensor. The system includes a plurality of reflective mirrors configured and arranged to reflect radiation from a source of radiation onto the remote sensor with accurately known polarimetric properties. Each of the reflective mirrors are located so that the target images do not overlap. The remote sensor is configured to receive the radiation reflected from the plurality of reflective mirrors and store the received radiation as image data (e.g., the image of each mirror appears as a point target). The system includes a processor configured to process the received data to provide direct calibration and performance validation for each polarimetric or spectral channel of the remote sensor. In addition, the calibration method removes all atmospheric effects except for transmittance and provides reference targets that have high polarimetric contrast, full spectrum performance and easy to deploy.
Abstract translation: 描述了用于远程传感器的替代偏振校准和性能验证的方法和系统。 该系统包括多个反射镜，其被配置和布置为将来自辐射源的辐射以精确已知的偏振特性反射到远程传感器上。 每个反射镜被定位成使得目标图像不重叠。 远程传感器被配置为接收从多个反射镜反射的辐射并将接收到的辐射存储为图像数据（例如，每个镜的图像显示为点目标）。 该系统包括处理器，其被配置为处理接收到的数据以对远程传感器的每个偏振或频谱通道提供直接校准和性能验证。 此外，校准方法除去透射率以外的所有大气效应，并提供具有高极化对比度，全光谱性能和易于部署的参考目标。
-
Patent Agency Ranking
公开(公告)号：US10168209B2
公开(公告)日：2019-01-01
申请号：US15481834
申请日：2017-04-07
Applicant: RAYTHEON COMPANY
Inventor： Susan B. Spencer , Lacy G. Cook , Andrew L. Bullard , John F. Silny
IPC: G01J3/02
Abstract: Aspects and embodiments are generally directed to modular imaging spectrometer assemblies and methods of operation thereof. In one example, a modular imaging spectrometer assembly includes foreoptics to receive electromagnetic radiation and produce a real exit pupil, the foreoptics having a first f-number, a first imaging spectrometer to receive and disperse the electromagnetic radiation into a first plurality of spectral bands at a first image plane, the first imaging spectrometer having a second f-number independent of the first f-number, a second imaging spectrometer separated from the first imaging spectrometer, the second imaging spectrometer to receive and disperse the electromagnetic radiation into a second plurality of spectral bands, the second imaging spectrometer having a third f-number independent of the first f-number, and at least one slit aperture positioned to receive the electromagnetic radiation from the real exit pupil and direct the electromagnetic radiation to the first and second imaging spectrometers.
-
公开(公告)号：US20180080826A1
公开(公告)日：2018-03-22
申请号：US15270942
申请日：2016-09-20
Applicant: RAYTHEON COMPANY
Inventor： John F. Silny , Bradley A. Flanders
CPC classification number: G01J3/2823 , G01J3/18 , G01J3/2803 , G01J2003/1204 , G01J2003/1273 , G01J2003/2826
Abstract: An imaging spectrometer and method are provided. In one example, the imaging spectrometer includes foreoptics positioned to receive electromagnetic radiation from a scene, a diffraction grating positioned to receive the electromagnetic radiation from the foreoptics and configured to disperse the electromagnetic radiation into a plurality of spectral bands, each spectral band corresponding to a diffraction grating order of the diffraction grating, and a single-band focal plane array configured to simultaneously receive from the diffraction grating overlapping spectra corresponding to at least two diffraction grating orders.
-
公开(公告)号：US20160021436A1
公开(公告)日：2016-01-21
申请号：US14335693
申请日：2014-07-18
Applicant: RAYTHEON COMPANY
Inventor： John F. Silny , Gary D. Coleman
CPC classification number: H04Q11/0005 , G02B6/262 , G02B6/3518 , H04Q2011/0009 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0026 , H04Q2011/003 , H04Q2011/0039 , H04Q2011/0043 , H04Q2011/0047 , H04Q2011/0049
Abstract: Device and method for optically switching a plurality of optical input signals include: receiving the plurality of optical input signals, wherein one or more of the optical input signals represent multiple channels at different channel frequencies; collimating the received plurality of optical input signals; removing noise between the channels by a comb filter; dispersing the collimated optical signals so that signals of different wavelength are separated by different angles; focusing the optical signals separated by different angles on a light switch device having a plurality of micromirrors; and controlling the light switch by a control signal to direct one or more of the optical signals separated by different angles to one or more output fibers for multicasting of the optical input signals.
Abstract translation: 用于光学切换多个光输入信号的装置和方法包括：接收多个光输入信号，其中一个或多个光输入信号表示不同信道频率的多个信道; 准直所接收的多个光输入信号; 通过梳状滤波器消除信道之间的噪声; 分散准直光信号，使不同波长的信号以不同的角度分离; 将由不同角度分离的光信号聚焦在具有多个微镜的光开关装置上; 以及通过控制信号控制所述光开关，以将由不同角度分离的一个或多个光信号引导到一个或多个输出光纤，用于组播光输入信号。
-
公开(公告)号：US20150215039A1
公开(公告)日：2015-07-30
申请号：US14163341
申请日：2014-01-24
Applicant: RAYTHEON COMPANY
Inventor： C. Thomas Hastings, JR. , John F. Silny
IPC: H04B10/112 , H04B7/185
CPC classification number: H04B10/112 , H04B7/18504 , H04B7/18506
Abstract: A free space line of site communication system for communicating between a first destination and a second destination includes a constellation of airborne platforms in a train-like formation, each travelling at a constant speed and distance relative to each other. Each of the airborne platforms includes: one or more inter-airborne platform optical or RF transceivers for communication with a previous and a next neighboring airborne platforms, wherein each inter-airborne platform transceiver is capable of adjusting its velocity to keep a constant speed and distance relative to its neighboring airborne platforms, and one or more up/down link transceivers for communication with multiple ground sites, each ground site having two or more ground optical or RF transceivers. A first airborne platforms closest to the first destination communicates with the first destination and a second airborne platforms closest to the second destination communicates with the second destination.
Abstract translation: 用于在第一目的地和第二目的地之间进行通信的站点通信系统的自由空间线包括列车状地形中的空中平台的星座，每个行星座以彼此相同的速度和距离。 每个机载平台包括：一个或多个空中平台光学或RF收发器，用于与先前和下一个相邻的机载平台通信，其中每个空中平台收发器能够调整其速度以保持恒定的速度和距离 相对于其相邻的机载平台，以及用于与多个地面站点通信的一个或多个上/下链路收发器，每个地面站点具有两个或更多个地面光或RF收发器。 最靠近第一目的地的第一机载平台与第一目的地通信，最靠近第二目的地的第二机载平台与第二目的地通信。
-
公开(公告)号：US09030660B2
公开(公告)日：2015-05-12
申请号：US13622564
申请日：2012-09-19
Applicant: Raytheon Company
Inventor： John F. Silny , Lacy G. Cook
CPC classification number: G01J3/18 , G01J3/2823 , G01J3/36
Abstract: One embodiment disclosed is a spectrometry system for collecting spatially and temporally co-registered hyperspectral data covering multiple spectral bands. The spectrometry system includes a single entrance slit for receiving light and a plurality of disperser elements operating over a plurality of distinct spectral bands to disperse the received light into constituent spectral channels. The system also includes a plurality of collimating and imaging optic elements that receive and re-image the dispersed light. The system also includes at least two focal plane arrays affixed in a common plane and configured to receive the re-imaged dispersed light, each of the at least two focal plane arrays being dedicated to sensing a distinct spectral band of the dispersed light.
Abstract translation: 所公开的一个实施方案是用于收集覆盖多个光谱带的空间和时间上共同登记的超光谱数据的光谱测定系统。 光谱测量系统包括用于接收光的单个入口狭缝和在多个不同光谱带上操作的多个分散器元件以将接收的光分散到组成光谱通道中。 该系统还包括接收并重新映射分散的光的多个准直和成像光学元件。 该系统还包括至少两个焦平面阵列，其固定在公共平面中并被配置为接收重新成像的分散光，所述至少两个焦平面阵列中的每一个专用于感测分散光的不同光谱带。
-
-
-
-
-
-
-
-
-
Search Results
29
records
(took 0.027 seconds)
