America as represented by the Secretary of the Army (USA)
Inventor
Wilson, Adam A.
Sharar, Darin J.
Smith, Gabriel L.
Knick, Cory R.
Abstract
Sensor interconnects and supports and methods of making them utilize phonon disruptors for increased thermal resistance while maintaining acceptable electrical signal quality in materials. Phonon disruptors include, but are not limited to, structural features such as interfaces, grain boundaries, and point scattering sites, for example, that are designed to scatter heat carriers while allowing electrons to pass through the material. Some embodiments herein involve designing selected stacks of alternating or sequential material pairs within sensor interconnects.
G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
G01K 7/42 - Circuits effecting compensation of thermal inertiaCircuits for predicting the stationary value of a temperature
America as represented by the Secretary of the Army (USA)
Inventor
Govoni, Mark A.
Mccormick, Seth A.
Abstract
A stacked patch antenna array includes: a conductive ground plane configured to connect to a plurality of electrical transmission lines for transmitting and/or receiving electrical signals; a driven layer adjacent to the conductive ground plane formed of a dielectric material and comprising a plurality of first resonant circular patches, each electrically connecting to a respective electrical transmission line such that a received electrical signal excites and generates an electromagnetic signal and/or a received electromagnetic signal excites and generates an electrical signal; an electrically insulating spacer adjacent to the driven layer; and a coupled layer adjacent to the electrically insulating spacer formed of a dielectric material and comprising a plurality of second resonant circular patches which are symmetrically positioned with respect to the first circular resonant patches of the driven layer and excited by the electromagnetic waves generated by the first resonant circular patches, wherein the electrically insulating spacer electrically separates the driven layer and the coupled layer having a thickness such that the resonances of the first and second resonant circular patches constructively combine.
America as Represented by the Secretary of The Army (USA)
Inventor
Graham, Colin W
Durham, Jefferson M
Huen, Jerry
Abstract
A testing device is provided that evaluates the operating performance of radio frequency (RF) emitting devices such as a counter-unmanned aircraft system (C-UAS) device. The testing device allows an operator, with limited RF knowledge, to conduct testing on a C-UAS device and quickly verify functionality in any location with no data analysis. The testing device provides a simplified and portable method to test the RF output of devices such as C-UAS. Since C-UAS devices use RF power to disrupt their UAS target, the performance can be assessed by verifying the RF power level emitted by the C-UAS device. In order to do this the testing device measures and assesses the RF power levels in the bands that the C-UAS device emits radio frequency energy.
America as Represented by the Secretary of the Army (USA)
Inventor
Labonte, Amee W
Kauzlarich, Michael F
Abstract
A reduced toxicity pyrotechnic strobe composition and method includes creating a mixture of strontium nitrate, magnalium, sulfur, and no more than 10 parts by weight of a nitrocellulose binder. The strontium nitrate may comprise 27 percent of the mixture. The magnalium may comprise a 50:50 blend of magnesium and aluminum. The magnalium may comprise 18 percent of the mixture. The sulfur may comprise 55 percent of the mixture. The mixture may include a pulse rate of approximately one pulse per minute. The method may further include modifying the pulse rate of the mixture. The method may further include using a reduced particle size of the magnalium. The method may further include substituting no more than 12.5% of the strontium nitrate with potassium nitrate.
C06B 33/08 - Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with a nitrated organic compound
5.
Method and apparatus for performing signal augmentation
America as represented by the Secretary of the Army (USA)
Inventor
Ranney, Kenneth I.
Gallagher, Kyle A.
Merritt, Iv, John C.
Tom, Kwok Foo
Viveiros, Jr., Edward A.
Freeman, Stephen D.
Abstract
Apparatus for augmenting a received signal comprising a receiver configured to receive a signal, a digitizer configured to generate a digitized version of the received signal at two different times, and a signal processor, coupled to the digitizer, configured to determine a phase relationship between the digitized signals at the two different times, adjust a phase of at least one of the digitized signals based on the phase relationship to combine the two digitized signals to form an augmented signal.
H04B 1/00 - Details of transmission systems, not covered by a single one of groups Details of transmission systems not characterised by the medium used for transmission
America as Represented by the Secretary of the Army (USA)
Inventor
Diviacchi, Giancarlo
Abstract
A mixture and method of creating the mixture includes mixing hexachloroethane, stannous oxide, and aluminum together. The mixture may be loaded into at least one canister. The mixture may be combusted to create a smoke screen. The loading of the mixture into the at least one canister may include pressurized loading at loading pressures in the range of approximately 2300 psi to 3600 psi. The hexachloroethane may include approximately 30-40 parts by weight of the mixture and have a particle size of approximately less than 850 μm. The stannous oxide may include approximately 55-65 parts by weight of the mixture and have a particle size of approximately less than 150 μm. The aluminum may include approximately 5-10 parts by weight of the mixture and have a particle size of approximately less than 45 μm. The mixture is devoid of zinc chloride.
C06B 33/02 - Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with an organic non-explosive or an organic non-thermic component
F17C 5/00 - Methods or apparatus for filling pressure vessels with liquefied, solidified, or compressed gases
F42B 12/48 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materialsProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for producing chemical or physical reactionProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling for dispensing gases, vapours, powders or chemically-reactive substances smoke-producing
C06D 3/00 - Generation of smoke or mist [chemical part]
F41H 9/06 - Apparatus for generating artificial fog or smoke screens
C06B 33/00 - Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
C06B 27/00 - Compositions containing a metal, boron, silicon, selenium or tellurium or mixtures, intercompounds or hydrides thereof, and hydrocarbons or halogenated hydrocarbons
D03D 23/00 - General weaving methods not special to the production of any particular woven fabric or the use of any particular loomWeaves not provided for in any other single group
C06B 43/00 - Compositions characterised by explosive or thermic constituents not provided for in groups
8.
Measuring camera to body alignment for an imager mounted within a structural body
America as represented by the Secretary of the Army (USA)
Inventor
Everson, Daniel P.
Maley, James M.
Abstract
A technique is provided to measure an alignment of an imaging device of a guided projectile containing an imager and a world coordinate frame, and includes producing a pure rolling motion of a body of the projectile, capturing a series of images of an imaging device calibration target over a range of body roll angles of the rolling body, measuring the roll angles of the rolling body with respect to a world coordinate frame as defined by the imaging device calibration target, simultaneously estimating alignment angles of the imaging device and misalignment angles associated with an orientation of the body, and estimating a rotational transform between an imaging device coordinate frame and a body coordinate frame based on the estimated alignment angles and misalignment angles.
G01C 11/02 - Picture-taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures
G01B 11/27 - Measuring arrangements characterised by the use of optical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of optical techniques for testing the alignment of axes for testing the alignment of axes
America as represented by the Secretary of the Army (USA)
Inventor
Jungwirth, Patrick W.
Abstract
A microprocessor computer system for secure/high assurance/safety critical computing includes a hardware subsystem having a plurality of cache controller and cache bank modules including cache bank and memory cell hardware permission bits for managing and controlling access to system resources. A computer security framework subsystem includes a hierarchy of access layers comprising top layers and lower layers. The permission bits provide hardware level computer security primitives for a computer operating system. The top layers are completely trusted and the lower layers are moderately trusted to completely untrusted. The top layers include a trusted operating system layer that executes management and control of the system resources and permission bits. The permission bits define limits for a hardware execution security mechanism for less trusted to completely untrusted software. Exceeding bounds of the security mechanism results in a hardware exception thereby blocking all attempts to access or modify resources outside the security mechanism.
G06F 21/62 - Protecting access to data via a platform, e.g. using keys or access control rules
G06F 12/0875 - Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches with dedicated cache, e.g. instruction or stack
G06F 12/0897 - Caches characterised by their organisation or structure with two or more cache hierarchy levels
G06F 21/78 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data