Abstract: An apparatus for displaying an image, including: an input image node configured to provide at least a first and a second image modulated lights; and a holographic waveguide device configured to propagate the at least one of the first and second image modulated lights in at least a first direction. The holographic waveguide device includes: at least a first and second interspersed multiplicities of grating elements disposed in at least one layer, the first and second grating elements having respectively a first and a second prescriptions. The first and second multiplicity of grating elements are configured to deflect respectively the first and second image modulated lights out of the at least one layer into respectively a first and a second multiplicities of output rays forming respectively a first and second FOV tiles.

Abstract: A reconfigurable synoptic system utilizes commercial-off-the-shelf components to receive files indicating all of the connected avionics component and defining a weight of each component corresponding to the criticality of the component. The system divides the available display space into boxes that occupy space on the display based to the criticality of the corresponding component. Avionics components may be assemblages of sub-components, in which case the space designated for the component may be further divided according to its sub-components or the space designated for the component may be selectable to produce a similar display of only sub-components.

Abstract: A method of routing a first signal in a telecommunication network is disclosed. The telecommunication network comprises plural nodes and uses time-division multiple access (TDMA) frames, with each TDMA frame divided into time slots and each time slot is divided into subslots. The method includes the step of transmitting a first signal from an initiating node in a first subslot. The method further includes the step of receiving the first signal at other nodes in the network in the first subslot, wherein the first signal is retransmitted in a second subslot subsequent to the first subslot. An improvement in the method includes the step of preparing for the retransmission at least one of a time-dispersed first signal or time-dispersed algorithmically related first signal by two or more nodes via a controller.

Abstract: A system and method for monitoring a circuit for impending failure includes measuring changes to frequency-domain impedance with a pair of analog-to-digital converters connected to a conductor while powering up, with or without interposing a series sense resistor for measuring applied current. Changes to frequency-domain impedance or power delivery voltage ratio are identified via a neural network trained to identify frequency-domain impedance associated with normal system behavior and general system failure mode. The neural network may be further trained to produce a predictive probability of specific failure mode types.

Abstract: A multi-node communication network and method for sending data within a multi-node communication network are disclosed. The network includes a source communication node, a destination communication node, and one or more relay communication nodes. The communication nodes include a communication interface and a controller communicatively coupled to the communication interface configured to transmit, receive, or relay a data packet. The data packet includes a route request and a route request priority index, which is configured to provide a determining factor indicating that a route response may be combined with a position location transmission. Once received by the destination communication node, a route response may be combined with a PLI transmission and transmitted, depending on the indication by the route request priority index.

Abstract: A system may include a multi-lead memristor. The multi-lead memristor may include a first lead, a second lead, a third lead, a first memristor material, and a second memristor material. The second lead may be positioned between the first lead and the third lead. The first memristor material may be positioned between the first lead and the second lead. The second memristor material may be positioned between the second lead and the third lead.

Abstract: A system may include a first conductive plate configured at least to receive an input signal and a second conductive plate configured at least to output an output signal. The system may further include a first memristor material positioned between the first conductive plate and the second conductive plate. The system may further include a second memristor material positioned between the first conductive plate and the second conductive plate. The first memristor material and the second memristor material may be in parallel electrically. The first memristor material may be different from the second memristor material.

Abstract: A system of spiral antennas is incorporated into aircraft body panels. The spiral antennas may be slot or printed material antennas, cavity backed for unidirectional communication, or open for bi-directional communication. The spiral antennas are operated in concert as a steerable array. The spiral antennas are utilized for various signal functions including ultra-wideband communications and electronic support measures interferometry.

Abstract: An oscillator includes dual resonators mounted in a helium filled coldweld holder. One resonator operates at anti-resonance into a load capacitance of about 20 picofarads, and operates on a third overtone frequency under noncontrolled temperature conditions. The other resonator operates on a fundamental mode at anti-resonance in a load capacitance of about 32 picofarads. Resonator crystals in a dual-crystal resonator may include a theta-angle shift to equalize frequency versus temperature curves at temperature extremes.

Abstract: An avionics lower level device (LLD) simulator may include at least one touchscreen display device. The at least one touchscreen display device may include a display stack assembly including at least one touchscreen sensor and a display and at least one advanced haptic feedback component positioned proximate to the display stack assembly. The at least one touchscreen display device may be configured to display at least one GUI or GUI icon, the at least one GUI or GUI icon related to an operation of an aircraft, may be configured to provide at least one advanced haptic feedback response following an interaction with the at least one GUI or GUI icon displayed on the at least one touchscreen display device, and may be configured to mimic a physical response observed following an operation of a mechanical component installed within a cockpit of the aircraft.

Abstract: A system and method are provided for automatically adjusting exposure to maintain color fidelity where a point source puts a small cluster of pixels in saturation. An exposure level is iteratively reduced until pixels corresponding only one color in a Bayer filter remain above a threshold while all other colors are at or below the threshold. The cluster of pixels is isolated for analysis such that only neighboring pixels are considered while reducing the exposure.

Abstract: One embodiment provides an apparatus for displaying an image comprising: a first optical substrate comprising at least one waveguide layer configured to propagate light in a first direction, wherein the at least one waveguide layer of the first optical substrate comprises at least one grating lamina configured to extract the light from the first substrate along the first direction; and a second optical substrate comprising at least one waveguide layer configured to propagate the light in a second direction, wherein the at least one waveguide layer of the second optical substrate comprises at least one grating lamina configured to extract light from the second substrate along the second direction; wherein the at least one grating lamina of at least one of the first and second optical substrates comprises an SBG in a passive mode.

Abstract: A system for rendering a heads-up display element oriented to the surrounding terrain to alleviate cognitive fatigue and eye strain defines buffer regions around a useable region. An orientation element tracks the movement and/or orientation of the user's head and adjusts the useable region via corresponding movements within the buffer regions to align the useable region with the terrain. The orientation element may include a motion tracking camera, micro-electromechanical motion tracking device, etc. Text within the useable region is anchored to a relative location with respect to the horizon for small movements via small translations of the useable region within the buffer regions. For larger movements, the useable is allowed to drift outside the display area completely, and gradually dragged back to a default location according to some time function.

Abstract: A modular lower lobe passenger rest cabin includes passenger rest compartments oriented longitudinally along the roll axis and laterally along the pitch axis. Partial passenger rest compartments are defined by the modular lower lobe passenger rest cabin such that when two modular lower lobe passenger rest cabins are installed in a cargo deck of an aircraft, the partial passenger rest compartments define a single passenger rest compartment or aisle from space that would otherwise be insufficient for the purpose.

Abstract: A system may include an ad hoc satellite network including multiple satellites, a first terminal, and a second terminal. Each of the first satellite and a second satellite of the multiple satellites may include: a receive high frequency (HF) antenna configured to receive HF signals; a transmit HF antenna configured to transmit HF signals; an inter-satellite transmitter configured to transmit signals to another satellite of the ad hoc satellite network; an inter-satellite receiver configured to receive signals from another satellite of the ad hoc satellite network; and a processor. The first terminal may include an HF transmit antenna configured transmit an HF communication payload to the ad hoc satellite network. The second terminal may include an HF receive antenna configured receive the HF communication payload from the ad hoc satellite network.

Abstract: A formation monitoring system for a plurality of aircraft flying in formation is disclosed. The system includes a display for a leader aircraft configured to display a current position of one or more aircraft of the plurality of aircraft. The system further includes a controller for the leader aircraft configured to at least one of receive a current position signal from one or more aircraft of the plurality of aircraft, calculate the current position of the one or more aircraft of the plurality of aircraft, or calculate a target position of the one or more aircraft of the plurality of aircraft. The system further includes a transmitter configured to transmit the target position signal to the one or more aircraft of the plurality of aircraft.

Abstract: An automated take-off system for an aircraft includes a processing circuit an automated braking system of the aircraft, the automated braking system configured to cause the aircraft to stop. The processing circuit is configured to determine whether the speed of the aircraft less than a VR speed and an aircraft failure event has occurred and determine whether to abort the takeoff or continue the takeoff in response to determining that the speed of the aircraft is less than the VR speed and that the aircraft failure event has occurred. The processing circuit is configured to cause the automated braking system to stop the aircraft in response to determining to abort the takeoff.

Abstract: A system and method for a haptic display is disclosed. The haptic display includes a display head and an actuator layer. The actuator layer includes a pin board configured with a plurality of opening, and a plurality of pins configured to translate within the plurality of openings. One or more of the plurality of pins includes a display interaction end configured to physically interact with the display head and an actuation end. The actuation layer further includes a plurality of linear actuator elements physically coupled to the actuation end of the plurality of pins configured to bias a set of the pins against the display head. A bias of the set of pins against the display head generates a protrusion on the flexible surface that may be reduced by a biasing force of a user, wherein the user detects a reduction of the protrusion.

Abstract: A global navigation satellite system (GNSS) receiver is disclosed. In embodiments, the GNSS receiver includes a tracking engine running on a primary controller, the tracking engine configured to receive a plurality of signals from a plurality of satellites. The GNSS receiver further includes a space-time adaptive correlator (STAC) engine running on an application-specific controller. In embodiments, the STAC engine is configured to: receive initial position data and an initial receiver clock estimate from the tracking engine; construct a spatial hypercube based on the received initial position data; receive the plurality of signals from the tracking engine; interpolate signal strengths of the plurality of signals to generate a plurality of signal intensity curves; integrate the plurality of signal intensity curves within the spatial hypercube for the initial receiver clock estimate to generate a signal intensity hypercube plot; and determine a receiver position based on the signal intensity hypercube plot.

Abstract: A method for mask, temperature, and social distancing detection is disclosed. The method includes: receiving one or more images or videos from a detection device; measuring a body temperature of a passenger; performing face mask detection based on a pre-trained mask detection model and the received images or videos; and generating one or more control signals based on the measured body temperature and the performed face mask detection, the one or more control signals configured to cause the detection sub-system to grant access when the body temperature is at or below a threshold or deny access when the body temperature is above the threshold, the one or more control signals configured to cause the detection sub-system to grant access when the model detects the passenger wearing a face mask properly or deny access when the pre-trained mask detection model detects the passenger not wearing the face mask.