Abstract: A communication system is described. The communication system includes a number of nodes which frequency hop without coordination from a frequency table. To establish communication, the nodes scan across a band for one or more signals of interest. The signals of interest include one or more of a synchronization signal, a control signal, and a traffic signal. When transmitting the signals of interest, the nodes determine one or more characteristic for the signal, such as a channel, based on a spectral occupancy of interferers in the band.

Abstract: An ejection seat may comprise a seatback, a headrest located at an upper end of the seatback, and a pitot tube rotatably coupled to the headrest. A pitot restraint assembly may be operably coupled to the pitot tube. The pitot restraint assembly may be configured to translate between a restrained state and a released state. The pitot tube may rotate from a stowed position to a deployed position in response to the pitot restraint assembly translating to the released state.

Abstract: A system and method to assist piloting an aircraft in landing phase is disclosed. The system includes a pseudo glide path calculation module that includes a processor and a memory communicatively coupled to the one processor and having instructions stored upon. The instructions, when executed by the processor, cause the one or more processors to receive coordinates for a runway, receive exit path coordinates for a runway, receive aircraft configuration data, receive aircraft status data, receive runway environmental data, calculate a relative position of the aircraft in reference to the exit path coordinates and the runway environmental data, generate a pseudo displaced threshold for the runway, and generate a pseudo approach glide path profile based on the pseudo displaced threshold. The pseudo displaced threshold and the pseudo approach glide path profile may be depicted on a display. A runway occupation time may also be calculated.

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 lumina 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 predicting pressure waves in a sonic boom footprint calculates alternative footprints and pressure waves along a flight path based on speed and altitude modifiers. The available, adjustable parameters are bounded within a flight envelope and along an approved flight corridor. The system receives and incorporates data from external sources, such as weather data, that impacts sonic boom pressure wave predictions and aircraft performance characteristics.

Abstract: In a system for identifying objects by means of distributed neural networks a resource-intensive proportion of the neural network is provided at a base station (on the ground), whereas a less resource-intensive proportion of the neural network, in particular the remaining proportion of the neural network, is provided at a front end (for example remote-controlled vehicle). The technical complexity for the front-end side and for the transmission of data between the base station and front end can thus be reduced.

Abstract: An optical display system includes a first display, a plurality of electronic drivers, a controller, and a combiner. Light from a scene is combined with image light from the first display, and the combined light presented to an observer. The combiner includes an electrochromic layer comprising one or more electrochromic regions separated from each other. The electronic drivers are arranged to electrically connect with and drive respective of the electrochromic regions. The controller is configured to control the plurality of electronic drivers to individually address each of the electrochromic regions to selectively drive some of the electrochromic regions to change light transmission of the selectively driven electrochromic regions.

Abstract: Lossless digital cancelation of internally generated spurious products within a signal receiver system is provided. In embodiments, the receiver system generates reference frequencies corresponding to internal components within the receiver (e.g., mixers, oscillators, clocks, analog-digital converters (ADC)) that introduce spurious products into the digitization of a received RF signal. The receiver system precisely duplicates each introduced spurious product based on the reference frequencies and filters out each corresponding spurious product out of the digitized signal. Individualized canceler circuits for each introduced spurious product adjust the corresponding duplicate spurious products to cancel out the introduced spurious product from the digitized signal, resulting in an output signal free of self-generated interference.

Abstract: Systems and methods provide an antenna array with separately fed subarrays. The systems and methods provide optimized or improved physical embodiments of each sub-banded subarray in terms of radiating element type and physical implementation, radio frequency integrated circuit (RFIC) technology choice, RFIC packaging and interconnect implementation, and/or intra-subarray feed typology choice and implementation. The antenna array can include first elements within a first distance range from a point in a surface associated with the antenna array and configured for first signals in a first frequency range, and second elements within a second distance range from the point and configured for second signals in a second frequency range. The antenna system also can include an interconnect system comprising a first multichip module and a second multichip module region.

Abstract: A system for automated formation flight is disclosed. The system may include a formation commander sub-system including a task-based interface configured to receive a sequence of one or more task-based commands along with one or more sets of task-based options for each of the one or more task-based commands from an operator using one or more task-based selectable buttons of the task-based interface. The system may further include a formation manger sub-system communicatively coupled to the formation commander sub-system. Each vehicle of one or more vehicles within one or more teams may be configured to employ the formation manager sub-system. The formation manager sub-system may be configured to receive the one or more task-based commands along with the one or more sets of task-based options for each vehicle to perform.

Abstract: A system, a device, and a method. The system may include a display configured to present images to a pilot and a processor communicatively coupled to the display. The processor may be configured to generate a speed performance monitor graphical user interface (GUI), the speed performance monitor GUI depicting flight deck interval management (FIM) information. The processor may be further configured to output graphical data associated with the speed performance monitor GUI to the display for presentation to the pilot.

Abstract: A system for rendering local aircraft traffic by defining boundaries of risk receives current aircraft locations for a plurality of aircraft, including altitudes, and determines multiple boundaries of risk for each aircraft. The multiple boundaries of risk are then consolidated according to risk level where such boundaries of multiple aircraft overlap or nearly overlap. Areas of risk are outlined according to common risk levels of multiple aircraft and the original diamond icons are unrendered. Ranges to the nearest aircraft in each direction are identified, and indicators of such direction and range to the nearest aircraft are rendered around the aircraft.

Abstract: A system and method for managing node status in a MANET includes each node identifying node status data and clusterhead priority value data in data packets. Clusterhead priority values define which node dominates in the event of a clusterhead collision. Clusterhead priority values prevent clusterhead switching based solely on first to declare. Each node may define a specific set of redundancy factors when determining if the node should be characterized as a gateway node. The specific set of redundancy factors is based on node capabilities to promote stability in gateway selection.

Abstract: A system includes a transmitter node and a receiver node. Each node of the transmitter node and the receiver node are time synchronized to apply Doppler corrections associated with said node's own motions relative to a stationary common inertial reference frame. The stationary common inertial reference frame is known to the transmitter node and the receiver node prior to the transmitter node transmitting a plurality of signals to the receiver node and prior to the receiver node receiving the plurality of signals from the transmitter node. The receiver node performs adaptive digitization of the signals to account for a speed of the platform.

Abstract: A system includes a vehicle cockpit and a processor. The vehicle cockpit includes imperceptible cockpit reference fiducials and a head wearable display (HWD) device. The imperceptible cockpit reference fiducials are imperceptible to a naked eye of a user in the vehicle cockpit. The HWD device includes a display and an optical sensor configured to: capture images of the imperceptible cockpit reference fiducials; and output optical sensor image data. The processor is configured to: receive the optical sensor image data; and based at least on the optical sensor image data, determine a position and orientation of the head wearable display device. The display is configured to display the images aligned with the field of view of the user based at least on the determined position and the determined orientation of the head wearable display device.

Abstract: A system and related method for multiple-sensitivity optical phase modulation splits an optical carrier generated by a photonic source into at least two copies and directs the copies through an electro-optical (EO) phase modulator wherein the optical field associated with the optical carrier overlaps with a radio frequency (RF) electrical field associated with a radio frequency (RF) input signal, such that the EO modulator phase-modulates each optical copy according to the RF input signal of interest based on characteristics distinct to each optical copy (e.g., relative strength of, or proximity of the optical carrier to, the overlapping electrical field) that provide for phase modulation of each optical copy at a different sensitivity voltage. The variably modified optical copies are directed to a photonic processor for further signal processing in the optical domain.

Abstract: A visual prototyping and assembly system includes a work surface configured to hold one or more work-in-progress units during an assembly operation. The visual prototyping and assembly system may receive the one or more images of the work-in-progress units; determine a current assembly state of the work-in-progress units based on the one or more images of the work-in-progress units; generate a current digital twin model of the -in-progress units corresponding to the current assembly state of the work-in-progress units and display the current digital twin model a user interface; determine a subsequent assembly state of the work-in-progress units; and generate a subsequent digital twin model of the work-in-progress units corresponding to the subsequent assembly state of the work-in-progress units and display the subsequent digital twin model on the user interface.

Abstract: An augmented reality system is disclosed that includes an image source configured to generate an image, and a display element configured to display the image. The system further includes an optical relay configured to project the image onto the display element. The system further includes a light sensor configured to quantify an amount of ambient light passing through, the display element. The system further includes a tracker processing unit operatively coupled to the light sensor, the image source, and the optical relay. The tracker processing unit includes a processor, and a memory configured to store instructions executable by the processors. The processors are instructed to receive sensor data from the light sensor, receive the image from the image source, update a pixel characteristic for one or more pixels of the image based on the sensor data, and transmit an updated image to the optical relay.

Abstract: A system for displaying a stereo image is disclosed. The system includes a stereoscopic head up display (HUD) that includes a combiner and a display configured to display a stereo image. The system further includes either a head tracking sensor or an eye tracking sensor configured to generate a tracking dataset. The system further includes a processor and a memory with instructions that cause the processor to receive the tracking dataset, generate a distortion map based on the tracking dataset and a distortion function, receive a media stereo image, generate a stereo signal based on the distortion map and the media stereo image, and transmit the stereo signal to the display. The system is capable of conveying an image to an operator in the absence of a relay lens.

Abstract: A system and method for applying an adaptive adjustment or taper to an electronically scanned array (ESA) weather radar based on feedback from the weather radar. To minimize ground clutter and enable the ESA to display hazardous weather phenomena, the system adaptively adjusts amplitude and phase of ESA elements to adjust the far field pattern shape and sidelobes to maintain a desirable signal to clutter ratio. The system identifies ground clutter as a strong ground return over several azimuths depending on the radar beamwidth. Once the system IDs the ground clutter, it adaptively adjusts on receive for for the upcoming azimuths. The system selectively suppresses sidelobe echoes while maintaining the signal to noise (SNR) for weather targets. The system adaptively adjusts in real time as well as adjusting using precomputed historically accurate tapers stored in memory.