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    Continuously variable optical beam splitter
    413.
    发明授权
    Continuously variable optical beam splitter 有权

    公开(公告)号：US11009595B1

    公开(公告)日：2021-05-18

    申请号：US17097374

    申请日：2020-11-13

    Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

    Inventor： Robert T. Carlson

    IPC: G01S7/499 ,  G02B27/28 ,  G01S17/08

    Abstract: A continuously adjustable optical beam splitter includes a circular to linear polarization converter, a polarization rotator, and a polarization beam splitter that apportions light between two outputs. The polarization converter can include a quarter wave plate. The polarization rotator can include a mechanically rotated half wave plate or an electronically controlled liquid crystal variable retarder. The light source can be astronomical, reflected LIDAR light, or a laser beam from a remote laser communication node. Also disclosed is a free space laser communication terminal that implements the disclosed optical beam splitter, wherein the optical beam splitter diverts substantially all received laser light to an alignment channel during initial alignment, and then during message communication diverts more than 90%, and in embodiments up to 98%, of the received light to a communication channel, while alignment is maintained by continuing to divert the remaining laser light to the alignment channel.

    MULTIPLE MESSAGE SINGLE TIMESLOT LINK 16 RELAY TRANSMISSION
    417.
    发明申请
    MULTIPLE MESSAGE SINGLE TIMESLOT LINK 16 RELAY TRANSMISSION 有权

    公开(公告)号：US20210120550A1

    公开(公告)日：2021-04-22

    申请号：US16656710

    申请日：2019-10-18

    Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

    Inventor： John H. Chongoushian

    IPC: H04W72/04 ,  H04B7/155

    Abstract: A method of transmitting and receiving a plurality of Link 16 messages on a single subnet in a single timeslot includes a transmitting terminal packaging the Link 16 messages into an envelope enhanced throughput message (envelope LET message) and transmitting the envelope LET message to a receiving terminal, followed by the receiving terminal unpacking the Link 16 messages from the envelope LET message, restoring them to their original form, and presenting them to a host. Modification of the host is not required. The Link 16 messages can be relayed messages, and the transmitting terminal can be a relay terminal. The Link 16 messages can be concatenated within the envelope LET message, or another lossless packaging algorithm such as lossless compression can be applied. The terminals can be JTRS terminals, the Link 16 messages can be 115 kbps messages, and the envelope LET message can be a 2 Mbps LET message.

    NANOFABRICATED STRUCTURES FOR SUB-BEAM RESOLUTION AND SPECTRAL ENHANCEMENT IN TOMOGRAPHIC IMAGING
    418.
    发明申请
    NANOFABRICATED STRUCTURES FOR SUB-BEAM RESOLUTION AND SPECTRAL ENHANCEMENT IN TOMOGRAPHIC IMAGING 有权

    公开(公告)号：US20210116400A1

    公开(公告)日：2021-04-22

    申请号：US17076303

    申请日：2020-10-21

    Applicant: BAE Systems Information and Electronic Systems Integration Inc.

    Inventor： Eugene M. Lavely ,  Amrita V. Masurkar ,  Thomas J. Stark

    IPC: G01N23/2251

    Abstract: Techniques are provided for tomographic imaging with sub-beam resolution and spectral enhancement. A system implementing the techniques according to an embodiment includes a target structure comprising one or more selected materials nanopatterned on a first surface of the target structure in a selected arrangement. The system also includes a primary particle beam source to provide a particle beam incident on an area of the first surface of the target structure, the area encompassing one or more of the nanopatterned materials, such that the materials generate characteristic X-rays in response to the primary beam. The system further includes a spectral energy detector (SED) to perform individual photon counting and spectral analysis of the characteristic X-rays and estimate attenuation properties of the imaged sample. The sample is positioned both adjacent to a second surface of the target structure, opposite the first surface, and between the target structure and the SED.

    Dynamic weapon to target assignment using a control based methodology
    420.
    发明授权
    Dynamic weapon to target assignment using a control based methodology 有权

    公开(公告)号：US10962331B2

    公开(公告)日：2021-03-30

    申请号：US16433090

    申请日：2019-06-06

    Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

    Inventor： Quang M. Lam ,  Ned B. Thammakhoune

    IPC: G06G7/80 ,  F41G7/22

    Abstract: The system and method of dynamic weapon to target assignment (DWTA) using a control based methodology to dynamically assign each projectile to a target in a multiple target engagement situation. In some cases, closest proximity is used in a real-time, to accomplish the DWTA functional requirement and performance criteria. In some cases, g pulling acceleration and projectile fin deflection motion are also used to assess the best matched pair for each projectile and each target with an end goal of intercepting the target or guiding the projectile to an acceptable error basket for target destruction via detonation. For the closest distance criterion for projectile/target pairing, a cutoff time is used to ensure the pairing is conducted within an acceptable duration while still being able to intercept the target or meet a required miss distance basket (e.g.,

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