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公开(公告)号:US20240159293A1
公开(公告)日:2024-05-16
申请号:US18055693
申请日:2022-11-15
Inventor: Matthew A. Cerniway
IPC: F42B12/20
CPC classification number: F42B12/207
Abstract: An isolation assembly for use with a munition includes a housing extending along a central axis and defining a cavity. A shuttle is at least partially within the cavity with an air gap between the shuttle and the housing, where the shuttle is configured to contain one or more electronic components. An isolation assembly in the gap between the shuttle and the housing includes an elastomeric isolator and one or more seals. The isolation assembly retains the shuttle in the cavity with six degrees of freedom.
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322.
公开(公告)号:US11982698B2
公开(公告)日:2024-05-14
申请号:US17128825
申请日:2020-12-21
Inventor: Masoud Farshchian
IPC: G01S7/28 , G01R29/02 , G01R29/033 , G01S5/02 , G01S7/36 , G01S13/02 , G01S13/76 , G01R29/027 , G06F17/14 , G06F17/16
CPC classification number: G01R29/023 , G01R29/033 , G01S5/0278 , G01S7/36 , G01R29/027 , G01S13/762 , G06F17/14 , G06F17/16
Abstract: A feature detection system, the system comprising: at least one processor in operative communication with a signal source, said processor further comprising at least one non-transitory storage medium, wherein at least one non-transitory storage medium contains instructions configured to cause the processor to: apply a joint group sparse denoising and delay estimation approach to a signal received from said signal source; and output statistics regarding the signal, wherein the joint group sparse denoising and delay estimation approach comprises; using the following equation:
{
x
*
,
τ
*
}
=
argmin
x
,
τ
{
1
2
∑
j
=
1
M
y
j
-
x
2
2
+
∑
i
=
0
N
λ
i
φ
i
(
D
i
l
i
x
)
}
where: ϕi are regularization functions; ∥y−x∥22 is a data-fidelity term and, in embodiments, is chosen as the least-square term; li are real numbers; Di are operators, which may be linear filters that can be written in matrix form; λi are regularization parameters; and x*,τ* represent estimates of at least one transmitted pulse and associated delay, and solving the equation for multiple values of ϵ; choosing a vector, x, such that a cost function comprising the data fidelity term and regularization function is minimized; determining the ϵ that corresponds to the x that minimizes the cost function; and calculating the pulse width of the received signal, which corresponds to the desired estimate of the vector, x.-
公开(公告)号:US20240142635A1
公开(公告)日:2024-05-02
申请号:US17978590
申请日:2022-11-01
Inventor: John E. Acheson
Abstract: Techniques are provided for batch processing signal acquisition. A batch processing signal acquisition system implementing the techniques according to an embodiment includes a recording controller configured to store samples of an input signal to a memory. The input signal is received at a first sampling rate. The system also includes a playback controller configured to read samples from the memory for playback of the input signal at a second sampling rate. The system further includes an acquisition processor configured to detect and locate, in time and frequency, a signal of interest in the playback of the input signal. The system further includes a signal processor configured to process the signal of interest in the playback of the input signal based on the detection and location provided by the acquisition processor.
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公开(公告)号:US11969788B1
公开(公告)日:2024-04-30
申请号:US18101447
申请日:2023-01-25
Inventor: Jean L. Kubwimana , Alexander D. Johnson , Jacob Tamasy , James F. Fung , Matthew J. Ney
CPC classification number: B22F10/40 , B22F10/60 , B33Y10/00 , B33Y40/20 , B33Y80/00 , H01Q1/48 , H01Q9/0407
Abstract: A method of manufacturing an antenna assembly includes additively manufacturing an element that is a monolithic structure and that includes (i) a ground plane including one or more aperture slots, (ii) a patch antenna above the ground plane, and (iii) a sacrificial support feature to support the patch antenna above the ground plane. The method further includes applying a dielectric material between the ground plane and the patch antenna. In an example, applying the dielectric material between the ground plane and the patch antenna includes providing a dielectric foam between the ground plane and the patch antenna, where the dielectric foam at least in part supports the patch antenna above the ground plane. The method further includes removing at least a section of the sacrificial support feature, such that any remnant of the support feature does not physically couple the ground plane to the patch antenna.
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公开(公告)号:US11960064B2
公开(公告)日:2024-04-16
申请号:US17408537
申请日:2021-08-23
Inventor: Shawn C. Reven , Daniel Engheben , Jacinto E. Malabuyoc
CPC classification number: G02B13/14 , G02B15/02 , G02B26/0816 , G02B26/10
Abstract: A Mid-Wave Infrared (MWIR) objective and relay lens system has an F# of 3.33 and angular field of view of 15.28°. It is deployed, with a focal plane and scanning system, on airborne platforms for wide area motion imagery. It is corrected for monochromatic and chromatic aberrations over of 3.3 to 5.1 micrometers. Effective focal length is 20 inches, and the overall length is 40.70 inches. The lens has, from object to image, two groups of optical elements with a cold shield/aperture stop 6 inches from the image plane. Group 1 acts as an objective lens with a positive power and three elements, Group 2 acts as a relay lens has a positive power and four elements. The lens is made of Germanium and Silicon. It used in a scanning system in a pre-objective configuration where the fast scan mirror is located in front of the lens system.
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公开(公告)号:US11954208B1
公开(公告)日:2024-04-09
申请号:US17103131
申请日:2020-11-24
Inventor: Sheldon L. Grass , Alfreda M. DeLong , Jonathan P Ingraham , Noel A. Zenga
IPC: G06F21/57 , G06F9/4401 , G06Q10/0635 , G06Q10/0637 , G06Q10/0639 , G06Q10/067 , G06Q10/0875 , G06Q10/101
CPC classification number: G06F21/577 , G06F9/4401 , G06Q10/0635 , G06Q10/06375 , G06Q10/06393 , G06Q10/06395 , G06Q10/067 , G06Q10/0875 , G06Q10/101 , G06F2221/034 , G06Q2220/00
Abstract: A method for a system for security evaluation includes working one state at a time; identifying primitives of interest and systematically applying relevant attacks for the system; starting at chip level, working through states, and then expanding a system boundary and repeating; following a sequence of: chip>circuit card>subsystem>system>platform for a product solution under analysis; determining if a system definition has sufficient detail, or is too abstract; for a chip with a native secure boot protocol, determining if all players are represented; representing attacks as vectors made up of measurements of the following attributes: Dollars, days, Probability of success, Probability of destruction, technology node, and number of samples; and representing countermeasures as vectors made up of scaling factors for each of attack attributes.
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公开(公告)号:US20240103182A1
公开(公告)日:2024-03-28
申请号:US17953512
申请日:2022-09-27
Inventor: John E. Acheson , Michael N. Kloos , Nathaniel L. James , Mitchell Dennis
IPC: G01S19/37
CPC classification number: G01S19/37
Abstract: Techniques are provided for employing an embedded software defined radio (SDR) in a navigation system. A navigation system implementing the techniques according to an embodiment includes a global positioning system (GPS) receiver configured to acquire and track received GPS signals. The system also includes an SDR configured to process received communication signals. The communication signals include timing data. The SDR is further configured to calculate position and navigation data based on a combination of the processed communication signals and the tracked GPS signals provided by the GPS receiver. The system further includes a system timer configured to provide a common time base for use by the GPS receiver and the SDR. The navigation system is implemented in an application specific integrated circuit (ASIC).
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公开(公告)号:US11927212B2
公开(公告)日:2024-03-12
申请号:US17710171
申请日:2022-03-31
Inventor: Michael R. Estridge , Mark J. Dube , William J. Elliott
IPC: F16B43/00
CPC classification number: F16B43/003
Abstract: A thin film-retaining washer with custom geometry that may further provide for a simple press-on installation while maintaining retention of fasteners during assembly, shipping, handling, and/or use of associated systems. The present retaining hardware is easily manufactured from sheet or film materials with minimal post-processing and may be scaled and optimized for use with multiple size and style of fasteners. Further, the thickness profile of the thin film retaining hardware facilitates lobe spring deflection to further provide secure retention of the associated fasteners.
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公开(公告)号:US11859949B1
公开(公告)日:2024-01-02
申请号:US16587564
申请日:2019-09-30
Inventor: Michael J. Choiniere , Ira B. Ekhaus , Quang M. Lam
Abstract: The system and method of projectile flight management using a combination of radio frequency orthogonal interferometry for the long range navigation and guidance of one or more projectiles that does not need to be accurate all the way to the ground based on the use of larger artillery. The system provides for more accurate targeting, especially in GPS-denied and GPS-limited environments.
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公开(公告)号:US11856078B2
公开(公告)日:2023-12-26
申请号:US17672244
申请日:2022-02-15
Inventor: George A. Cuiffo
Abstract: A custom transport jumper utilizing local Common Object Request Broker Architecture protocols to intercept message data before the data is marshalled into a CDR package. The custom transport jumper may then utilize the Common Object Request Broker Architecture standard to allow communication between systems on different operating systems, in different programming languages, and/or on different computing hardware while allowing messages to be sent in a more efficient, more portable, and more easily policed manner.
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