Methods and systems are provided for generating an on-demand distributed aperture by mechanical articulation. In some aspects, a process can include steps for determining a location of an autonomous vehicle, determining whether a maneuver requires long range detections or medium range detections based on the location of the autonomous vehicle, positioning at least two articulated radars based on the determining of whether the maneuver requires long range detections or medium range detections, and enabling a mode of resolution based on the positioning of the at least two articulated radars and by utilizing a static radar. Systems and machine-readable media are also provided.

The invention relates to a radar system, particularly a primary radar system, comprising at least one signal generating device (SGEN), which is configured to generate and to emit a transmit signal sequence, at least one signal detection device, which is configured to receive and to detect a receive signal sequence reflected on an object structure, at least one mixer (MIX) for mixing the receive signal sequence with the transmit signal sequence and for forming N baseband signals s.sub.b(n, t), where n=1 . . . N, and at least one scanning device (ADC), which is configured to scan the N baseband signals at scanning frequencies fs(n), wherein at least two, preferably at least three, further preferably all of the N scanning frequencies fs(n) differ from each other.

An apparatus comprises an array of vertical-cavity surface-emitting lasers. Each of the vertical-cavity surface-emitting lasers is configured to be a source of light. The apparatus also comprises an optical arrangement configured to receive light from a plurality of the vertical-cavity surface-emitting lasers and to output a plurality of light beams.

A radar device includes an antenna unit emitting a radar wave into space, a high frequency circuit receiving a reflected wave of the radar wave from a target via the antenna unit, and a baseband circuit converting a received signal outputted from the high frequency circuit into a baseband signal having a digital value. The radar device has a first mode for detecting the target at a relatively long distance and a second mode for detecting the target at a relatively short distance. Four or more receiving channels are configured in the antenna unit, high frequency circuit, and baseband circuit, a receiving channel number that is the number of the receiving channels on which the conversion processing to the baseband signal is performed is smaller in the second mode than the first mode, and speed of the conversion processing is faster in the second mode than the first mode.

A radar device includes an antenna unit emitting a radar wave into space, a high frequency circuit receiving a reflected wave of the radar wave from a target via the antenna unit, and a baseband circuit converting a received signal outputted from the high frequency circuit into a baseband signal having a digital value. The radar device has a first mode for detecting the target at a relatively long distance and a second mode for detecting the target at a relatively short distance. Four or more receiving channels are configured in the antenna unit, high frequency circuit, and baseband circuit, a receiving channel number that is the number of the receiving channels on which the conversion processing to the baseband signal is performed is smaller in the second mode than the first mode, and speed of the conversion processing is faster in the second mode than the first mode.

Methods and systems are provided for generating an on-demand distributed aperture by mechanical articulation. In some aspects, a process can include steps for determining a location of an autonomous vehicle, determining whether a maneuver requires long range detections or medium range detections based on the location of the autonomous vehicle, positioning at least two articulated radars based on the determining of whether the maneuver requires long range detections or medium range detections, and enabling a mode of resolution based on the positioning of the at least two articulated radars and by utilizing a static radar. Systems and machine-readable media are also provided.

Methods and systems are provided for generating an on-demand distributed aperture by mechanical articulation. In some aspects, a process can include steps for determining a location of an autonomous vehicle, determining whether a maneuver requires long range detections or medium range detections based on the location of the autonomous vehicle, positioning at least two articulated radars based on the determining of whether the maneuver requires long range detections or medium range detections, and enabling a mode of resolution based on the positioning of the at least two articulated radars and by utilizing a static radar. Systems and machine-readable media are also provided.

Techniques and architectures for managing radar sensor processing chains. A first high-frequency radio signal is received with a first RF receiver in the plurality of RF sensor suites on a host platform. The received high-frequency radio signal is converted to a lower second frequency range. A chirplet transform is performed on the signal in the second frequency range. Stored relative location information for a second RF receiver in the plurality of RF sensor suites is retrieved. Radar waveform information corresponding to the second RF receiver in a processing stream corresponding to the first RF receiver is extracted by utilizing the retrieved information and results from the chirplet transform. A point cloud is generated based on the converted signal in the second frequency range and the extracted radar waveform information.

A control unit for controlling wireless data transmissions in a mobile communications system provided on board an aircraft, a mobile communications system having a control unit of this type, an associated method for controlling wireless data transmissions in a mobile communications system provided on board an aircraft, and a computer program for carrying out the method. The control unit comprises a generating component for generating a band-limited masking signal for masking terrestrial mobile communications signals in a first frequency band and a combining component for combining the band-limited masking signal and a service signal for the wireless transmission of data in a second frequency band different from the first frequency band. The combining component is configured to combine the masking signal and the service signal so that terrestrial mobile communications signals in a third frequency band formed by overlapping of the first and the second frequency band are masked.

A multiple-input and multiple-output (MIMO) radar system, including a horizontal antenna array having horizontal elements to detect an azimuth angle estimation, the horizontal elements being arranged in a sparse and non-sparse distribution, a vertical antenna array having vertical elements to detect an elevation angle estimation, the vertical elements being arranged in a sparse and non-sparse distribution, and a two-dimensional antenna array including a portion of the horizontal antenna array and a portion of the vertical antenna array. The system is configured to estimate, using the horizontal antenna array, an azimuth angle, to estimate, using the vertical antenna array, an elevation angle, to identify, based on the azimuth angle and the elevation angle, one or more ambiguities, and to analyze, using a portion of the two-dimensional antenna array, the one or more ambiguities to determine a more accurate azimuth angle and elevation angle.