Systems and methods for simulation
    431.
    发明授权

    公开(公告)号:US10863121B1

    公开(公告)日:2020-12-08

    申请号:US16518427

    申请日:2019-07-22

    Abstract: Systems and methods for computationally simulating an optical image are provided. The systems and methods generate a simulated scene having at least one variable optical property, compute an optical transfer function (OTF) via at least one computed phase screen, express the OTF as a sum of at least one separable OTF, convolve the at least one separable OTF with the simulated scene to simulate electromagnetic (EM) fields of the optical image, and compute image intensities of the optical image from the simulated EM fields of the optical image.

    TRANSISTOR AMPLIFIER
    432.
    发明申请

    公开(公告)号:US20200382076A1

    公开(公告)日:2020-12-03

    申请号:US16427596

    申请日:2019-05-31

    Abstract: A transistor amplifier includes at least one differential pair of transistors and a plurality of transformers having a primary winding and a tapped secondary winding. The secondary winding is connected across emitters or sources of each transistor pair. The tap of each secondary has a current source. The primary windings of the plurality of transformers are connected in series. The transistor bases or gates are alternating current (AC) grounded. The collector or drain terminal pairs are connected in parallel. The transistor amplifier exhibits improved input impedance and improved linearity.

    Ground shield to enhance isolation of antenna cards in an array

    公开(公告)号:US10854965B1

    公开(公告)日:2020-12-01

    申请号:US16277200

    申请日:2019-02-15

    Abstract: A ground shield is connected to a princted circuit board or antenna card in an antenna unit cell to cover a balun to prevent or inhibit the ability of a differential signal flowing towards or through the balun from coupling with a similar differential signal flowing through an adjacent antenna card in the antenna unit cell. This ground shield may be one of a pair of ground shields on the antenna card. Two ground shield can be positioned on opposing sides of the balun to enhance isolation thereof by shielding the differential signals flowing towards and through the balun from coupling with adjacent differential signals to thereby increase bandwidth performance of the antenna unit cell. The ground shields may be generally or substantially or totally planar so as to be conformal with a substrate or dielectric layer of the antenna card or printed circuit board.

    INFORMATION SHARING WITH ENHANCED SECURITY
    435.
    发明申请

    公开(公告)号:US20200374318A1

    公开(公告)日:2020-11-26

    申请号:US16419765

    申请日:2019-05-22

    Abstract: Techniques are disclosed for providing information sharing with enhanced security. In an embodiment, a secure information sharing engine provides secure sharing of data by applying one or more validation rules to the data. When applied to a given portion of the data, the validation rule verifies that the data of the given portion is, in fact, the data that is supposed to be in the given portion. At least one of the validation rules includes a check that a portion of the data contained in multiple fields maintain a relationship between the multiple fields. If the data passes the applied one or more validation rules, the secure information sharing engine allows the sharing of the data. Otherwise, if the data does not pass the one or more applied validation rules, the secure information sharing engine disallows the sharing of the data.

    Multi-ship coherent geolocation system for airborne emitters

    公开(公告)号:US10830865B1

    公开(公告)日:2020-11-10

    申请号:US16412847

    申请日:2019-05-15

    Abstract: Techniques are provided for geolocation of an airborne radar emitting source. A methodology implementing the techniques according to an embodiment includes initializing a search grid with hypothesized emitter geolocations boxes of the grid. The method further includes refining geolocations based on calculated pulse repetition intervals of de-Dopplerized times of arrival (TOAs) of emitter pulses received at multiple collection platforms within a dwell period. A residue metric is employed to qualify candidate target geolocations based on differences between the measured TOAs and hypothesized TOAs associated with the refined geolocations. A candidate history tracks the geolocations of the candidates with the smallest residue over subsequent dwells, identifying such candidates that match locations in the history and updating counts of times the candidate has been matched. Candidates with lagging match counts are dropped from the history. The search grid size is reduced to encompass regions surrounding the viable candidates by a selected margin.

    SYSTEMS AND METHODS FOR SUPPLYING AND DISTRIBUTING POWER

    公开(公告)号:US20200346775A1

    公开(公告)日:2020-11-05

    申请号:US16398563

    申请日:2019-04-30

    Abstract: A modular power supply and distribution system includes a controller and at least one power distribution bus operably connected to the controller. The system includes at least one power distribution bus that distributes electrical power to a plurality of loads. The system further includes a data communication network configured to communicate data between the system and the plurality of loads, power load logic for determining a power load requirement of each of the plurality of loads, hold-up logic for determining a hold-up requirement of at least one of the plurality of loads; and power distribution logic for distributing the electrical power to the plurality of loads based, at least in part, on the determined power load requirement of each of the plurality of loads and the hold-up requirement of the at least one of the plurality of loads.

    BALLISTIC RANGE ADJUSTMENT USING CONING COMMANDS

    公开(公告)号:US20200340787A1

    公开(公告)日:2020-10-29

    申请号:US16960971

    申请日:2019-08-30

    Abstract: A guided projectile including a precision guidance munition assembly utilizes angular rate sensors to sample a first angular velocity of the precision guidance munition assembly from the first angular rate sensor at a first time, sample a second angular velocity of the precision guidance munition assembly from the second angular rate sensor at the first time, generate a coning command based, at least in part, on the first angular velocity and the second angular velocity, and apply the coning command to the canard assembly. The range may be decreased or increased based on the coning commands.

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