Abstract: The present application discloses a LiDAR, which includes a base including a bearing surface, an adjusting structure located on the bearing surface, and a laser transceiving module including a plurality of laser transceiving devices. A galvanometer module of the LiDAR is fixed on the bearing surface. Each laser transceiving device is fixed on the adjusting structure, respectively. Each laser transceiving device is able to generate an outgoing laser emitted to the galvanometer module, respectively. The adjusting structure is configured so that each of the laser transceiving devices has a corresponding distance from the bearing surface, and therefore, the outgoing lasers generated by each of the laser transceiving devices form a preset laser detection field of view outside the LiDAR.

Abstract: An efficient approach to reconstruct the scanner trajectory of the mobile LIDAR system from the point cloud with minimal user parameters. The process of reconstructing trajectory comprises four steps: (1) spin rate estimation, (2) scan plane estimation, (3) scan origin estimation, and (4) global smoothing.

Abstract: A system includes a light detection and ranging (LiDAR) unit comprising an atmospheric characterization transceiver module. The LiDAR unit is configured to transmit light into an external interaction air region, and collect scattered portions of the transmitted light from the external interaction air region. A robotic arm is operatively coupled to the atmospheric characterization transceiver module. A processor is in operative communication with the robotic arm. The processor is configured to control the robotic arm to position and point the atmospheric characterization transceiver module in a direction of interest to interrogate the external interaction air region.

Abstract: A system and method of LIDAR imaging to overcome scattering effects pulses a scene with light pulse sequences from a light source. Reflected light from the scene is measured for each light pulse to form a sequence of time-resolved signals. Time-resolved contrast is calculated for each location in a scene. A three-dimensional map or image of the scene is created from the time-resolved contrasts. The three-dimensional map is then utilized to affect operation of a vehicle.

Abstract: A scanner has a rotational axis and reflection surfaces. The scanner rotates the reflection surfaces about the rotational axis. The reflection surfaces are parallel to a direction of the rotational axis. The scanner changes a direction of each of the light beams transmitted from the phototransmitter and incident on the scanner to thereby output changed light beams in a main scanning direction that is orthogonal to the direction of the rotational axis. The scanner reflects light beams arriving from a target object based on reflection of the changed light beams to thereby cause the light beams to be directed toward the receiver. The first and second light sources are arranged such that the optical axis of at least one of the light beams transmitted from the first and second light sources is obliquely inclined with respect to a reference plane that is orthogonal to the rotational axis.

Abstract: A heater is provided to heat an optical window. The inner face of the optical window is partitioned by the shield plate into a first part for the phototransmitter and a second part for the photoreceiver, the first part for the phototransmitter being arranged to face the first space, the second part for the photoreceiver being arranged to face the second space. The heater includes a first film, a second film, two phototransmitter electrodes, and two photoreceiver electrodes. The first film is a transparent conductive film arranged to cover the first part for the phototransmitter. The second film is a transparent conductive film arranged to cover the second part for the photoreceiver. The two phototransmitter electrodes are configured to energize the first film. The two photoreceiver electrodes are configured to energize the second film.

Abstract: The invention relates to an emitter device (8) for an optical detection apparatus (3) of a motor vehicle (1), which is configured in order to scan a surrounding region (4) of the motor vehicle (1) by means of a light beam (10), and which comprises a light source (13) for emitting the light beam (10) and a guiding unit (15), the guiding unit (15) being configured in order to guide the light beam (10) emitted onto the guiding unit (15) by the light source (13) at different scanning angles (?). The light source (13) for emitting the light beam (10) comprises at least two separately driveable emitter elements (13a, 13b), which are configured in order to emit the light beam (10) onto the guiding unit (15) at angles of incidence (?1, ?2) corresponding to predetermined setpoint values (??3, ??2, ??1, ?0, +?1, +?2, +?3) of the scanning angle (?) in order to generate a predetermined setpoint field of view (16) of the emitter device (8).

Abstract: Embodiments discussed herein refer to LiDAR systems to focus on one or more regions of interests within a field of view.

Abstract: Techniques of present disclosure are directed to methods of providing acoustic communication networks. For example, methods are provided for that include obtaining, at a first transceiver of a plurality of transceivers arranged within an installation pattern, a first acoustic signal provided by a second transceiver of the plurality of transceivers. A location of the first transceiver within a message distribution pattern is determined from the acoustic signal. A delay based upon the location of the first transceiver within the message distribution pattern is determined. Finally, a second acoustic signal corresponding to the first acoustic signal is provided from the first transceiver after the delay.

Abstract: An optical system is described, in particular for a LIDAR device, which includes a lens array having a multitude of microlenses and a lens system for deflecting beams out of a scanning area or into the scanning area, the lens system being situated in the beam path between the scanning area and the lens array, the system including at least one wedge array having a multitude of wedge elements situated upstream or downstream from the lens array in the radiation direction, a number of wedge elements equaling a number of microlenses. A LIDAR device is also described.

Abstract: An object identifying method is provided. The method comprises: acquiring detection data associated with a detection signal, wherein the detection data comprises a transmission time of the detection signal transmitted by a LiDAR device; acquiring reflection data associated with a reflection signal of the detection signal reflected by an object at an object distance from the LiDAR device, and the reflection data comprises a receipt time of the reflection signal and an intensity of the reflection signal; and determining whether the object is an interference by comparing the intensity of the reflection signal with a distance-dependent threshold intensity.

Abstract: An ultrasonic apparatus includes a transmitting circuit, an ultrasonic transducer, a receiving circuit, and a capacitance measuring circuit. The ultrasonic transducer is a three-terminal ultrasonic transducer that includes a transmitting electrode, a receiving electrode, and a common electrode. The transmitting circuit outputs a driving signal to the transmitting electrode to cause the ultrasonic transducer to transmit ultrasonic waves. The receiving circuit receives a receive signal from the receiving electrode. The capacitance measuring circuit is electrically connected to the receiving electrode to measure the electrostatic capacitance of the ultrasonic transducer.

Abstract: A multiple target tracker and beam steerer utilizes a MEMs MMA for beam steering to simultaneously illuminate multiple tracked targets per frame. The MMA can be adaptively segmented to change the number of output beams, and the power in a given beam, based on a list of tracked targets, range to targets, threat level etc. The MMA can be adaptively configured to simultaneously perform one or more Designation, Range Finding and Active Imaging modes on the same or different tracked targets. The MMA can be segmented so that each segment includes a plurality of mirrors to “oversample” the input beam. The mirrors in a given segment may be controlled to provide wavefront correction to the corresponding output beam.

Abstract: An electromagnetic wave detection apparatus (10) includes a switch (16), a first detector (19), and a second detector (20). The switch (16) includes an action surface (as) with a plurality of pixels (px) disposed thereon. The switch (16) is configured to switch each pixel (px) between the first state and the second state. In the first state, the pixels (px) cause electromagnetic waves incident on the action surface (as) to travel in a first direction (d1). In the second state, the pixels (px) cause the electromagnetic waves incident on the action surface (as) to travel in a second direction (d2). The first detector (19) detects the electromagnetic waves that travel in the first direction (d1). The second detector (20) detects the electromagnetic waves that travel in the second direction (d2).

Abstract: A method of operating a light detection and ranging (LiDAR) system is provided that includes performing a scene measurement using a LiDAR sensor capable of measuring Doppler per point. The method also includes estimating a velocity of the LiDAR sensor with respect to static points within the scene based on the scene measurement. The method may also include compensating for the velocity of the LiDAR sensor and compensating for a Doppler velocity of the LiDAR sensor.

Abstract: The present invention relates to a laser rangefinder having common optical path comprising a housing assembly, a control and display assembly mounted in the housing assembly, a mounting device mounted in the housing assembly, an imaging module mounted on the mounting device and a laser module movably mounted on the mounting device longitudinally next to the imaging module, the laser module being electrically connected with the control and display assembly, the laser module comprising a laser emitting apparatus, a laser receiving apparatus and a reference point indicating apparatus, wherein a light path of the laser emitting apparatus and a light path of the laser receiving apparatus are configured to be independent to a light path of the reference point indicating apparatus, an optical axis of light path of the laser emitting apparatus shooting at the target object and an optical axis of the reference point indicating apparatus are collinear.

Abstract: A Light Detection And Ranging (LiDAR) system may include: a transmitter configured to output pulse laser; a reflecting mirror comprising two or more reflecting surfaces to reflect the pulse laser; a driver configured to rotate the reflecting mirror; a path control mirror configured to reflect the pulse laser to the reflecting surfaces of the reflecting mirror to form an optical path of the pulse laser; and a receiver configured to receive the light reflected through the reflecting mirror, and convert the received light into an electrical signal, wherein the reflecting mirror comprises: a first reflecting surface; and a second reflecting surface, wherein the first and second reflecting surfaces are connected to each other at one point, the first reflecting surface and the second reflecting surface have different tilt angles from each other, and the first reflecting surface is tilted in the opposite direction of the second reflecting surface.

Abstract: Systems, methods, and computer-readable media are disclosed for a vibrated polarizing beam splitter for improved return light. An example method may involve emitting, by an emitter, a first light pulse. The example method may also involve reflecting, by a polarizing beam splitter in a first position, the first light pulse, wherein the polarizing beam splitter is at a first angle of incidence in the first position. The example method may also involve adjusting, subsequent to the polarizing beam splitter reflecting the first light pulse, a position of the polarizing beam splitter from the first position to a second position, wherein the polarizing beam splitter is at a second angle of incidence in the second position. The example method may also involve transmitting, by the polarizing beam splitter, a return light pulse through the polarizing beam splitter, the return light pulse based on the first light pulse. The example method may also involve detecting, by a detector, the return light pulse.

Abstract: A LIDAR apparatus for scanning a scene, comprising a transmitter stage, a receiver stage, a beam-steering engine configured to steer the light beam received from the transmitter stage in different directions to scan at least a portion of the scene, the beam-steering engine being responsive to steering commands to produce corresponding deflections of the light beam and an operation monitor for monitoring a beam-steering function of the beam-steering engine.

Abstract: A technology is described for mapping a physical environment. An example method may include receiving laser point data for laser light reflected from the physical environment and detected by a laser sensor. Points included in the laser point data can be correlated to grid cells in an environment map that represents the physical environment. Error ranges for the points correlated to the grid cells can be determined based in part on an error distribution. Occupation probabilities can then be calculated for the grid cells in the environment map using an interpolation technique and grid cell occupation probabilities for adjacent error grid cells selected based in part on the error ranges of the points, and the grid cells in the environment map can be updated with the occupation probabilities.