Abstract: A cognitive radio device may include an RF receiver configured to receive interfering RF signals, an RF transmitter configured to be selectively operated, a quantum computing circuit configured to perform quantum subset summing, and a processor. The processor may be configured to generate a game theory reward matrix for a plurality of different deep learning models, cooperate with the quantum computing circuit to perform quantum subset summing of the game theory reward matrix, select a deep learning model from the plurality thereof based upon the quantum subset summing of the game theory reward matrix, and process the received interfering RF signals using the selected deep learning model for selectively operating the RF transmitter.

Abstract: A communications device may include an RF device, and a circular cylindrical antenna coupled to the RF device. The circular cylindrical antenna may include a conductive ground plane, a conductive feed associated with the conductive ground plane, and a conductive sinusoidal element coupled to the conductive feed and extending outwardly from the conductive ground plane along a circular cylinder.

Abstract: A deployable space antenna may include a housing and a first telescoping boom and a second telescoping boom extendable from the housing in opposite directions from a stowed position to a deployed position. Each of the first and second telescoping booms may include telescoping boom segments. Each of a plurality of deployable, steerable antennas is carried by respective telescoping boom segment and movable between a stowed position and a deployed position. An antenna controller is configured to steer the deployable, steerable antennas.

Abstract: A satellite may include an optical component, and an optical adjustment device coupled to the optical component. The optical adjustment device may include a base, and an adjustment flexure carried by the base. The adjustment flexure may be moveable between an unflexed neutral position and a flexed first position, and between the unflexed neutral position and a flexed second position. The optical adjustment device may further include a rotatable drive shaft carried by the base, a drive cam carried by the rotatable drive shaft, a first cam follower and a second cam follower. The cam may cause the first and second cam followers to selectively move the adjustment flexure between the unflexed neutral position and the flexed first flexed position or the second flexed position.

Abstract: Systems and methods for providing a truss structure. The methods comprise: increasing a distance between a first end fitting coupled to a first node and a second end fitting coupled to a second node by actuating a flexure member to cause cup member of first end fitting to move in a first direction toward the first node; inserting a tube between the first and second end fittings; receiving a first end of the tube in an insert space of the second end fitting; decreasing the distance between the first end fitting and the second end fitting by actuating the flexure member to cause at least the cup member of the first end fitting to move in an opposing second direction away from the first node; and receiving a second end of the tube in an insert space of the first end fitting to provide a portion of the truss structure.

Abstract: A method comprising: forming a polyimide layer; forming a thin film resistor on the polyimide layer; forming, on the thin film resistor and the polyimide layer, a metallization layer that includes metal contacts on opposing ends of the thin film resistor but leaves an exposed surface of the polyimide layer; baking the polyimide layer, the thin film resistor, and the metallization layer to remove water from the polyimide layer; forming, on the exposed surface of the polyimide layer, a hydrophobic moisture barrier layer that prevents absorption of water into the polyimide layer to avoid blistering of the thin film resistor during subsequent laser trimming of the thin film resistor; and laser trimming a resistance of the thin film resistor between the metal contacts.

Abstract: In an embodiment, a payload assembly is independent of a corresponding mobile platform (e.g. small unmanned aerial vehicle (sUAV), etc.). The payload assembly includes a flight controller (FC), a global positioning system (GPS) unit, a radio frequency (RF) telemetry unit, an RF antenna, a companion computer, and a power distribution system, thereby enabling both mobile platform and payload agnostic capabilities.

Abstract: A perturbation radio frequency (RF) signal generator is provided which generates a perturbed RF output signal to cause a signal classification change by an RF signal classifier. The perturbation RF signal generator may include a quantum computing circuit configured to perform quantum subset summing; and a processor. The processor may be configured to generate a game theory reward matrix for a plurality of different deep learning signal perturbation models, cooperate with the quantum computing circuit to perform quantum subset summing of the game theory reward matrix, select a deep learning signal perturbation model from the plurality thereof based upon the quantum subset summing of the game theory reward matrix, and generate the perturbed RF output signal based upon the selected deep learning signal perturbation model to cause the signal classification change in the RF signal classifier.

Abstract: The techniques described herein relate to an apparatus including: a primary reflector including an orifice and a first reflective surface, the first reflective surface including a first region and a second region; and a secondary reflector including a second reflective surface facing the first reflective surface; wherein the first region, the second regions and the second reflective surface are configured such that the apparatus provides a two-bounce beam path through the apparatus and an independent four-bounce beam path through the apparatus.

Abstract: A method is performed using a transparent display alignment system in a vehicle. The transparent display alignment system includes a transparent display through which a user's eyes behind the transparent display view an external scene in front of the transparent display. The method comprises: receiving an eye position of the eyes, a vehicle position for the vehicle, and an external object position of an external object in the external scene; computing a parallax-free position on the transparent display that intersects with a line-of-sight from the eye position to the external object position through the transparent display, at least based on the eye position, the vehicle position, and the external object position; and positioning a graphic object on the transparent display at the parallax-free position to align the eye position, the graphic object, and the external object to avoid parallax when the eyes view the external object through the transparent display.

Abstract: A method is for making a circuit board to be coupled to a connector including a connector body and outwardly extending conductive pins. The method may include forming passageways in a dielectric layer, forming a first conductive layer within the passageways, and forming a core within the passageways to define conductive tubular vias. The method may also include removing an uppermost portion of the conductive tubular vias to define corresponding enlarged passageways, and forming a second conductive layer within the enlarged passageways to provide female contacts with each including a conductive cup having a continuous bottom abutting a respective conductive tubular via, and an upper end defining a recess to receive a corresponding conductive pin of the connector.

Abstract: A Rydberg sensor may include a plurality of Rydberg sensing regions and a probe laser source. An optical path may extend from the probe laser source to feed the Rydberg sensing regions in a series configuration. The sensor may also include at least one optical amplifier for the probe laser source coupled within the optical path between at least one adjacent pair of Rydberg sensing regions.

Abstract: An outer space-based vehicle may include a spacecraft bus, a payload having a payload center of mass, and a gimbal coupled between the spacecraft bus and the payload. The gimbal may have a gimbal axis aligned with the payload center of mass, and is configured to selectively rotate the payload about the gimbal axis. At least one payload momentum wheel may be coupled to the gimbal at the gimbal axis, and configured to counteract angular torque which would otherwise be imparted to the spacecraft bus.

Abstract: A phased array antenna may include an antenna substrate, an array of antenna elements carried by the antenna substrate, and time delay units (TDUs) coupled to the array of antenna element. Each time delay unit may include a circuit substrate, and delay circuits carried by the circuit substrate and coupled in series. Each delay circuit may have a respective signal delay value. At least one external bypass connection is carried by the circuit substrate and is coupled to the delay circuits to configure an overall time delay of the time delay unit.

Abstract: A radio frequency (RF) signal classification device may include an RF receiver configured to receive RF signals, a quantum computing circuit configured to perform quantum subset summing, and a processor. The processor may be configured to generate a game theory reward matrix for a plurality of different deep learning models, cooperate with the quantum computing circuit to perform quantum subset summing of the game theory reward matrix, select a deep learning model from the plurality thereof based upon the quantum subset summing of the game theory reward matrix, and process the RF signals using the selected deep learning model for RF signal classification.

Abstract: An electrically powered store deployment system for an aircraft may include a housing to be carried by the aircraft, and a release arrangement carried by the housing and configured to selectively release a store from the aircraft. The store deployment system may also include an ejection arrangement carried by the housing and configured to selectively eject the store away from the aircraft upon release of the store by the release arrangement. The ejection arrangement may include at least one electric motor carried by the housing, and at least one ejector piston carried by the housing and movable between stored and ejection positions responsive to the at least one electric motor.

Abstract: A system is for monitoring marine vessels that generate automatic identification system (AIS) message data. The system may include a memory and a processor cooperating therewith to train a maritime scenario topic model using training textual data having known corresponding maritime scenarios associated therewith. The training textual data may include AIS message data. The processor operate the trained maritime scenario topic model on new textual data having unknown corresponding maritime scenarios to determine probabilistic maritime scenarios corresponding to the new textual data, where the new textual data includes new AIS message data. The processor may further generate an alert based upon the probabilistic maritime scenarios.

Abstract: An electronic device includes an RF device, and an antenna. The antenna includes an elongate support, and helically wound conductive strips carried by the elongate support and with adjacent conductive strips having an angular spacing. The electronic device includes a feed structure coupling the RF device to the helically wound conductive strips.

Abstract: The techniques described herein relate to an apparatus including: a first optical element rotatably mounted to an axis; a second optical element rotatably mounted to the axis; a drive system including: a first protrusion associated with the first optical element, a first slot associated with the first optical element, a second protrusion associated with the second optical element, and a second slot associated with the second optical element; and a motor configured to: drive the drive system through a first range of motion to engage the first protrusion with the first slot to rotate the first optical element from a first position to a second position, and drive the drive system through a second range of motion to engage the second protrusion with the second slot to rotate the second optical element from a third position to a fourth position.

Abstract: A Rydberg sensor may include Rydberg sensing regions, a coupling laser source, and an optical path extending from the coupling laser source to feed the plurality of Rydberg sensing regions in a series configuration. A probe source generates respective probe laser beams for the Rydberg sensing regions.