Abstract: A system includes first, second, and third microphones configured to receive sound waves from a source of the sound waves. The system includes a memory configured to store first, second, and third phase difference maps for the first and second microphones, the second and third microphones, and the third and first microphones. The system includes a processor configured to measure first, second, and third phase differences between the sound waves received from the source by the first and second microphones, the second and third microphones, and the third and first microphones; receive the first, second, and third phase difference maps from the memory; and identify a location of the source of the sound waves based on the first, second, and third phase differences and the first, second, and third phase difference maps for the first and second microphones, the second and third microphones, and the third and first microphones.

Abstract: An optoelectronic sensor (10) for detecting objects in a monitoring region (20), the sensor (10) having a scanning unit (12, 58) movable about an axis of rotation (18), a plurality of scanning modules (22) for periodically scanning the monitoring region (20) and for generating corresponding received signals, and an evaluation unit (48) for obtaining information about the objects from the received signals, the scanning modules (22) comprising at least one light transmitter (24) for transmitting several light beams (28) separated from one another and at least one light receiver (36) for generating the received signals from the light beams (32) remitted by the objects, wherein at least one scanning module (22) is at least one of tilted by a tilt angle (?) relative to its main viewing direction and rotated by a rotation angle (?).

Abstract: A lidar receiver that includes a photodetector circuit can be controlled so that the detection intervals used by the lidar receiver to detect returns from fired laser pulse shots are closely controlled. Such control over the detection intervals used by the lidar receiver allows for close coordination between a lidar transmitter and the lidar receiver where the lidar receiver is able to adapt to variable shot intervals of the lidar transmitter (including periods of high rate firing as well as periods of low rate firing). The detection intervals can vary across different shots, and at least some of the detection intervals can be controlled to be of different durations than the shot intervals that correspond to such detection intervals.

Abstract: A device may include an input optical path, a first optical path, a plurality of second optical paths, a first optical amplifier, a plurality of second optical amplifiers, and a control circuit. The input optical path may receive, at one end thereof, a beam from a laser source. The first optical path and the second optical paths may be respectively branched from at the other end of the input optical path. The first optical amplifier may be coupled to the first optical path. The second optical amplifiers may be respectively coupled to the second optical paths. The control circuit may selectively turn on one of the second optical amplifiers to output a modulated optical signal of the beam. The control circuit may turn on the first optical amplifier, in synchronization with turning on any one of the second optical amplifiers, to output a local oscillator (LO) signal.

Abstract: A hybrid LiDAR-imaging device is configured for aerial surveying and comprises a camera arrangement adapted for generating orthophoto data and a LiDAR device, in which an overall exposure area is provided by the camera arrangement, which has a transverse extension of at least 60 mm and the LiDAR device has a longitudinal extension axially along a ground viewing nominal LiDAR axis and a lateral extension substantially orthogonal to the nominal LiDAR axis, in which the longitudinal extension is larger than the lateral extension.

Abstract: The present invention relates to a laser positioning apparatus and a laser positioning method, the laser positioning apparatus comprises a laser emitting module configured to generate a first laser; a laser direction adjusting module configured to adjust the first laser to a second laser in a first direction when the laser direction adjusting module is located in a first position, and adjust the first laser to a third laser in a second direction perpendicular to the first direction when the laser direction adjusting module is located in a second position; a distance determining module configured to receive the laser reflected or diffused back by the second laser on a surface of a first object to be measured to determine a distance from the laser positioning apparatus to the first object to be measured, or receive the laser reflected or diffused back by the third laser on a surface of a second object to be measured to determine a distance from the laser positioning apparatus to the second object to be measured

Abstract: A system comprising non-transitory and tangible memory comprising program instructions for performing an extended laser active ranging (ELAR) procedure having a first mode and a second mode. The system includes a processor configured to execute the program instructions to cause the processor to receive selection of a region-of-interest (ROI) having a pixel cluster; and cause laser ranging using a laser ranging system in the first mode. The process is configured to determine whether a laser ranging reflection (LRR) signal is received by a laser photodetector of a gimbal during the first mode. If the LRR signal is not received, the processor performs the second mode of the ELAR procedure initialized to a center of the selected ROI to search for a reflective surface in the ROI of an imaged real-world view of an ambient scene and registered to the pixel cluster to find a small target.

Abstract: A system for an aircraft includes an optical sensor, at least one aircraft sensor, and a controller. The optical sensor is configured to emit a laser outside the aircraft, and the at least one aircraft sensor is configured to sense at least one aircraft condition. The controller is configured to determine a first operational state of the aircraft based upon the at least one aircraft condition and determine a second operational state of the aircraft based on the at least one aircraft condition, and operate the optical sensor to emit the laser at a first intensity during the first operational state and a second intensity during the second operational state, wherein the second intensity is greater than the first intensity.

Abstract: A beam-steering engine, comprising an optical element switchable between a first operational mode and a second operational mode, in the first operational mode of the optical element the beam-steering engine is configured to output an input light beam incident on the beam-steering engine along a first propagation direction and in the second operational mode of the optical element the beam-steering engine is configured to output the input light beam incident on the beam-steering engine along a second propagation direction. A transition of the optical element between the first and second operational modes is characterized by a transition time period that varies with a temperature of the optical element. The beam-steering engine further includes a device to control a temperature of the solid-state optical element to maintain the transition time period below a certain limit.

Abstract: An apparatus for light detection and ranging is provided. The apparatus includes a reflective surface configured to oscillate about a rotation axis, and a plurality of light sources each configured to controllably emit a respective light beam via an optical system onto the reflective surface. Further, the apparatus includes a controller configured to control emission times of the plurality of light sources so that the reflective surface emits a plurality of light beams to an environment according to a first sequence of beam directions for a first measurement, and according to a second sequence of beam directions for a subsequent second measurement.

Abstract: The present invention provides a multi-mode dispersion energy imaging device and method for a four-component marine interface wave of an ocean bottom seismometer, belonging to the technical field of marine seismic exploration. The method includes the following steps: designing an marine interface wave artificial seismic observation system, designing a reasonable observation system according to the geological condition of the operation area to ensure the resolution of the imaging to perform the marine artificial source seismic operation carrying out the data preprocessing of the seafloor surface wave, and then carrying out the three-component seismometer Scholte wave and the acoustic guided wave dispersion energy imaging, and the one-component hydrophone acoustic guided wave dispersion energy imaging; superposing and normalizing the three-component Scholte wave dispersion energy spectrum and the one-component acoustic guided wave dispersion energy spectrum. The device is implemented based on the method above.

Abstract: The invention relates to a method for detecting a functional impairment of a laser scanner (2) of a motor vehicle (1), in which a laser beam (12) of the laser scanner (2) is transmitted through a protective screen (6) of the laser scanner (2) into a surrounding area (4) of the motor vehicle (1), wherein an echo (16) of the transmitted laser beam (12) at least partially reflected at the protective screen (6) is received by a reception unit (9) of the laser scanner (2) with an intensity value (19), and the functional impairment of the laser scanner (2) is detected if the intensity value (19) is different from a reference intensity value.

Abstract: A method is described for the in particular optical capture of at least one object (18, 20) with at least one sensor apparatus (14) of a vehicle (10), a device (34) of a sensor apparatus (14), a sensor apparatus (14) and a driver assistance system (12) with at least one sensor apparatus (14). In the method, in particular optical transmitted signals (36) are transmitted into a monitoring region (16) with the at least one sensor apparatus (14) and transmitted signals (36) reflected from object points (40) of the at least one object (18, 20) are captured as received signals (38) with angular resolution with reference to a main monitoring direction (42) of the at least one sensor apparatus (14). A spatial distribution of the object points (40) of the at least one object (18, 20) relative to the at least one sensor apparatus (14) is determined from a relationship between the transmitted signals (36) and the received signals (38), and the at least one object (18, 20) is categorized as stationary or non-stationary.

Abstract: One example system includes a lens disposed relative to a scene and configured to focus light from the scene. The system also includes an opaque material. The opaque material defines a plurality of apertures including a primary aperture and one or more secondary apertures. The system also includes one or more light detectors (e.g., a single element detector or an array of detectors) configured to intercept and detect diverging light focused by the lens and transmitted through at least one of the plurality of apertures defined by the opaque material.

Abstract: A light detection and ranging system is provided. The system includes a Galvanometer mirror; a multiple-facet light steering device; and a controller device comprising one or more processors, memory, and processor-executable instructions stored in memory. The processor-executable instructions comprise instructions for receiving a first movement profile of the Galvanometer mirror of the LiDAR scanning system; receiving calibration data of the multiple-facet light steering device of the LiDAR scanning system; generating a second movement profile of the Galvanometer mirror based on the calibration data and the first movement profile; and providing one or more control signals to adjust movement of the Galvanometer mirror based on the second movement profile.

Abstract: The present disclosure provides a range-finding system capable of data communication. The range-finding system includes a rangefinder for acquiring ranging data, a magnetic ring unit having at least two communication channels, and a data processing and control unit. Each communication channel includes a magnetic ring. The magnetic ring unit transmits the ranging data as downlink data from the rangefinder to the data processing and control unit via one or more of the communication channels.

Abstract: A surveying instrument comprises a light projecting optical system for projecting a distance measuring light to a predetermined measuring point, a light receiving optical system for receiving a reflected distance measuring light and an infrared light from the measuring point, and an arithmetic control module for controlling a distance measurement and a temperature measurement based on light receiving results of the reflected distance measuring light and the infrared light, and the arithmetic control module measures a distance to the measuring point based on light receiving results of the reflected distance measuring light received by a photodetector of the light receiving optical system, and measures a temperature of the measuring point based on light receiving results of the infrared light received by a temperature sensor of the light receiving optical system.

Abstract: Example embodiments relate to LIDAR systems with multi-faceted mirrors. An example embodiment includes a LIDAR system. The system includes a multi-faceted mirror that includes a plurality of reflective facets, which rotates about a first rotational axis. The system also includes a light emitter configured to emit a light signal toward one or more regions of a scene. Further, the system includes a light detector configured to detect a reflected light signal. In addition, the system includes an optical window positioned between the multi-faceted mirror and the one or more regions of the scene such that light reflected from one or more of the reflective facets is transmitted through the optical window. The optical window is positioned such that the optical window is non-perpendicular to the direction toward which the light emitted along the optical axis is directed for all angles of the multi-faceted mirror.

Abstract: Example adaptive vehicle headlights are disclosed. An example system includes a photodetector, an illumination source configured to generate first light during a first operating mode, a spatial light modulator (SLM), and a dichroic filter optically coupled to the illumination source and to the SLM, wherein the dichroic filter is configured to direct the first light to the SLM, and the SLM is configured to direct second light to the dichroic filter during a second operating mode, wherein the dichroic filter is configured to direct the second light having a first color to the photodetector, and direct the first light during the first operating mode.

Abstract: A multiple-pulses-in-air (MPiA) laser scanning system, wherein the MPiA problem is addressed in that an MPiA assignment of return pulses to send pulses of a laser scanner is based on range tracking and range probing at intermittent points in time. Each range probing comprises a time-of-flight arrangement which is constructed to be free of the MPiA problem. The invention further relates to an MPiA laser scanning system, wherein an MPiA ambiguity within a time series of return pulses, is converted into 3D point cloud space, which provides additional information from the spatial neighborhood of the points in question to enable MPiA disambiguation.