A system for augmenting 360-degree aspect monostatic radar cross section of an aircraft. The system may comprise a pair of pods mountable on opposing wing tips of an aircraft and each having a pod housing with an elongate body tapering forwardly to a nose and rearwardly to a tail. Each pod may comprise a forward SDL disposed within the nose, a rear SDL disposed within the tail, and a pair of mid-body SDLs disposed within a mid-section of the pod housing. The SDLs may be arranged within the pods to reflect radiation and provide coverage around the aircraft over a region of about 360 azimuth degrees. Each SDL may comprise radar absorbing material located on an interior reflective surface, and portions of the elongate bodies may be constructed of radome material. The SDLs may be Luneburg lens having diameters of at least approximately 8-inches.

There is provided an adjustment jig. A fixing unit has a plate shape and is detachably fixed to an attachment unit of a sensor provided on a vehicle side. An extension unit is provided to extend from the fixing unit. A suspension unit is suspended from the extension unit.

Aspects of the disclosure relate to cleaning rotating sensors having a sensor housing with a sensor input surface. For instance, a first signal indicating that there is a contaminant on the sensor input surface may be received. In response to receiving the first signal, a second signal may be sent in order to cause one or more transducers to generate waves in order to attempt to remove the contaminant from the sensor input surface.

A vehicle lamp module and a vehicle including the vehicle lamp module are provided. The vehicle lamp module includes a beam pattern forming part to form a beam pattern of light irradiated externally from a vehicle, a sensor part provided at one side of the beam pattern forming part to sense an external region including the beam pattern, a driving part coupled to one side of the sensor part to provide a driving force for rotating the sensor part to change the external region that the sensor part faces, and a connection part interposed between the beam pattern forming part and the sensor part to selectively connect or disconnect the beam pattern forming part and the sensor part with or from each other.

An environmental sensor device with a sensor enclosure is configured for use in a gas environment. An enclosure support, at least one sensor on a face of the enclosure; and at least one debris sloughing structure is used. The debris sloughing structure is composed of a channel with a set of inner and outer ridges disposed in the enclosure around a periphery of the at least one sensor, wherein a top portion of the debris sloughing structure above the at least one sensor and lateral portions of the debris sloughing structure on lateral sides of the at least one sensor. A shape and arrangement of the debris sloughing structure carries condensate or contaminants forming on non-sensor areas of the enclosure away from the sensor and to a bottom portion of the enclosure.

Concepts and examples pertaining to reconfigurable radio frequency (RF) front end and antenna arrays for radar mode switching are described. A processor associated with a radar system selects a mode of a plurality of modes in which to operate the radar system. The processor then controls the radar system to operate in the selected mode by utilizing a plurality of antennas in a respective configuration of a plurality of configurations of the antennas which corresponds to the selected mode. Each configuration of the plurality of configurations of the antennas results in respective antenna characteristics. Each configuration of the plurality of configurations of the antennas utilizes a respective number of antennas of the plurality of antennas.

An apparatus and method identify emitters. The apparatus includes a receiver, a parameter estimator, a database, and a correlator. The receiver receives an electromagnetic signal from an emitter and measures actual values of observed parameters of the electromagnetic signal. The parameter estimator surmises surmised values of unobserved parameters from the actual values of the observed parameters. The actual values of the observed parameters and the surmised values of the unobserved parameters characterize the emitter. The database stores one or more entries for each emitter. Each entry specifies an identifier of an emitter and exemplary values of the observed and unobserved parameters. The correlator matches the actual values of the observed parameters and the surmised values of the unobserved parameters with the exemplary values of one of the entries of the emitter from which the receiver receives the electromagnetic signal. The correlator outputs the identifier from this entry in the database.

The present disclosure is directed to a measurement system for measuring a reflection coefficient of a test sample, including: a transceiver antenna configured to be coupled to a source of electromagnetic radiation; and a RAM positioned between the transceiver antenna and a measurement region of the transceiver antenna, wherein the RAM comprises an aperture substantially orthogonal to and substantially aligned with a transceiving axis of the transceiver antenna. A method for obtaining error correction of a measurement system and a method of measuring a reflection coefficient in a test sample are also provided.

A universal sensor assembly for mounting on a vehicle is provided. The universal sensor assembly includes a sensor suite. The sensor suite includes a baseplate and a sensor being supported by the baseplate. The sensor including a field of view (FOV) associated with detecting objects within an environment surrounding the vehicle. The universal sensor assembly further includes a support structure. The support structure includes a set of detachable attachment mechanisms supporting the baseplate. The set of detachable attachment mechanisms is included on a rooftop of the vehicle at positions that are based on surface parameters associated with the rooftop and a support component supporting the baseplate. The one support component is disposed at a position on the rooftop that is based on the surface parameters so that the FOV of the sensor is unoccluded by any portion of the vehicle and the support structure.

A sensor apparatus includes a cylindrical sensor window defining an axis and a ring fixed relative to the sensor window and centered around the axis. The ring includes a liquid chamber, at least one nozzle, and an air chamber. The liquid chamber is elongated circumferentially around the axis. The at least one nozzle is fluidly connected to the liquid chamber and has a direction of discharge aimed at the sensor window. The air chamber is elongated circumferentially around the axis alongside the liquid chamber. The air chamber lacks inlets and outlets.