公开(公告)号：US12066573B2

公开(公告)日：2024-08-20

申请号：US17111322

申请日：2020-12-03

申请人： SICK AG

发明人： Siegfried Ringwald

IPC分类号： G01S7/48 ,  G01S7/481 ,  G01S7/495 ,  G01S17/10 ,  G01S17/894

CPC分类号： G01S7/4817 ,  G01S7/495 ,  G01S17/10 ,  G01S17/894

摘要： An optoelectronic sensor for detecting an object in a monitored zone having at least one light source for transmitting transmitted light, a light receiver having a reception optics arranged upstream for generating received signals from light beams remitted at the object, and a control and evaluation unit for acquiring information on the object from the received signals has a beam splitter arrangement arranged downstream of the light source for splitting the transmitted light into a plurality of transmitted light beams separated from one another, wherein the beam splitter arrangement includes a plurality of switchable beam splitters for splitting the transmitted light.

公开(公告)号：US20230417883A1

公开(公告)日：2023-12-28

申请号：US18367524

申请日：2023-09-13

申请人： Mitsubishi Electric Corporation

发明人： Masashi FUKUNAGA

IPC分类号： G01S7/4861 ,  G01S7/486 ,  G01S7/495

CPC分类号： G01S7/4861 ,  G01S7/4868 ,  G01S7/495

摘要： A sensitivity adjustment unit (102) adjusts a responsivity of a light receiving element (400) so that the responsivity becomes high. A noise removal unit (103) analyzes, after the responsivity is adjusted by the sensitivity adjustment unit (102), a temporal transition of a phase difference between an irradiation light emitted from a light emitting element (300) paired with the light receiving element (400) and a light received by the light receiving element (400) including a reflected light reflected by a ranging target (200) being a target of ranging, and removes a noise component included in the light received by the light receiving element (400).

公开(公告)号：US11796653B2

公开(公告)日：2023-10-24

申请号：US16520812

申请日：2019-07-24

申请人： UATC, LLC

发明人： Soren Juelsgaard

IPC分类号： G01S7/497 ,  G01S7/4865 ,  G01S7/4863 ,  G01S17/931 ,  G01S7/48 ,  G01S7/495

CPC分类号： G01S7/497 ,  G01S7/4804 ,  G01S7/4863 ,  G01S7/4865 ,  G01S7/495 ,  G01S17/931

摘要： Aspects of the present disclosure involve systems, methods, and devices for mitigating Lidar cross-talk. Consistent with some embodiments, a method includes detecting a noise signal producing noise in one or more return signals being received by a Lidar unit of an autonomous vehicle (AV) system, and detecting a noise source corresponding to the noise signal. The detecting of the noise source comprises determining a direction of the noise source relative to the AV system and determining a classification of the noise source based on an intensity of the noise signal. The method further includes generating state data to describe the noise source based on the direction of the noise source relative to AV system and the classification of the noise source. The method further includes controlling one or more operations of the AV system based on the state data describing the noise source.

公开(公告)号：US11513188B2

公开(公告)日：2022-11-29

申请号：US16652974

申请日：2017-10-02

申请人： Red Bend Ltd.

发明人： Yuval Weisglass ,  Yoram Oren ,  Tomer Gilad ,  David Mor Ofek

IPC分类号： G01S7/36 ,  G01S17/931 ,  G01S7/495 ,  G01S7/537 ,  G01S13/931 ,  G01S15/89 ,  G01S15/931 ,  G01S7/02

摘要： A method for processing signals of active sensor systems including processing an emitted signal to include at least one distinguishing feature, the emitted signal emitted by an active sensor system adapted to intercept a reflection of the emitted signal, and to analyze the reflection of the emitted signal for determining at least one parameter of at least one object located in a space, analyzing an intercepted portion to verify the at least one distinguishing feature in the intercepted portion, and processing the intercepted portion as the reflection of the emitted signal when the at least one distinguishing feature is verified.

公开(公告)号：US20210278534A1

公开(公告)日：2021-09-09

申请号：US17117453

申请日：2020-12-10

申请人： OPTEX CO., LTD.

发明人： Masashi Iwasawa ,  Masashiro Morita

IPC分类号： G01S17/10 ,  G01S7/481 ,  G01S7/495 ,  G08B13/184

摘要： A laser scanning sensor includes a distance data acquisition unit which acquires distance information in each measurement direction, and a memory which stores, as background distance information, a distance of an outer periphery of the detection area in each measurement direction. The sensor also includes a mirror surface determination unit which determines the presence of a reflecting surface when the distance information in continuous measurement directions is greater by at least a predetermined distance than the corresponding background distance information, and when this state changes thereafter by at least a predetermined rate in a predetermined time, a human body determination unit which extracts a portion of the distance information that may correspond to a human body and determines whether it corresponds to a human body, and an alarm output control unit which outputs an alarm signal when the presence of the reflecting surface or the human body is confirmed.

公开(公告)号：US20200348401A1

公开(公告)日：2020-11-05

申请号：US16931218

申请日：2020-07-16

申请人： VELODYNE LIDAR, INC.

发明人： David S. Hall ,  Anand Gopalan

IPC分类号： G01S7/4861 ,  G01S7/4865 ,  G01S17/89 ,  G01S7/495 ,  G01S7/487 ,  G01S17/10 ,  G01S17/42

摘要： Described herein are systems and methods for improving detection of a return signal in a light ranging and detection system. The system comprises a transmitter and a receiver. A first sequence of pulses may be encoded with an anti-spoof signature and transmitted in a laser beam. A return signal, comprising a second sequence of pulses, may be received by the receiver and the anti-spoof signature extracted from the second sequence of pulses. If based on the extraction, the first and second sequences of pulses match, the receiver outputs return signal data. If based on the extraction, the first and second sequence of pulses do not match, the return signal is disregarded. The system may dynamically change the anti-spoofing signature for subsequent sequences of pulses. Additionally, the first sequence of pulses may be randomized relative to a prior sequence of pulses.

公开(公告)号：US10731959B1

公开(公告)日：2020-08-04

申请号：US15870517

申请日：2018-01-12

申请人： Rockwell Collins, Inc.

发明人： Jonathan A. Lovseth ,  Anders P. Walker ,  Russell D. Wyse

IPC分类号： F42B12/38 ,  H03H11/20 ,  H03H7/01 ,  H03H7/12 ,  H03H7/21 ,  H01Q1/28 ,  H04B1/10 ,  G01S7/38 ,  G01S7/495 ,  H01Q1/22 ,  H03H9/70

摘要： A deployable active radar countermeasure or “smart chaff” device includes a flexible battery or length of reflective material for passive reflection of a surveillance radar signal. Metallized antenna elements printed onto the material receive the surveillance radar signals, and RF integrated circuitry bonded to the material generates active RF echo signals based on the frequency of the surveillance signal and the length of the material. Wirebond receiving paths include reconfigurable gain amplifiers and filters for adjusting the phase and amplitude of the echo signal, and transmit paths return the echo signal to the radar source via the antenna elements. Echo signals may combine with those of other such devices, having various lengths and associated frequencies, to simulate a false return associated with a particular aircraft or moving target (e.g., simulation of Doppler shift via offset echo frequencies).

公开(公告)号：US20200182986A1

公开(公告)日：2020-06-11

申请号：US16696259

申请日：2019-11-26

申请人： LMD Power of Light Corporation

发明人： Susan Houde-Walter ,  Christopher A. Gagliano

IPC分类号： G01S7/495 ,  G01J5/10 ,  B64C39/02 ,  F42B12/36 ,  F41H13/00 ,  H04K3/00 ,  G01J5/08

摘要： A system for interacting with a thermal detector includes at least one unmanned aerial vehicle and a sensor mounted to the at least one unmanned aerial vehicle. The sensor is configured to determine the presence of a component of the thermal detector and to generate a signal indicative of the presence of the component. The system also includes a beam emitter mounted to the at least one unmanned vehicle and in communication with the sensor. The beam emitter includes a beam source configured to direct a beam of thermal radiation to the thermal detector in response to the signal from the sensor.

公开(公告)号：US10649085B2

公开(公告)日：2020-05-12

申请号：US15783747

申请日：2017-10-13

申请人： RAYTHEON BBN TECHNOLOGIES CORP.

发明人： Jonathan L. Habif

IPC分类号： G01C3/08 ,  G01S17/10 ,  G01S7/292 ,  G01S7/36 ,  G01S7/487 ,  G01S7/495 ,  G01S13/10

摘要： A method and apparatus for authenticating a radar return signal include: generating an outgoing radar beam; generating a pair of entangled photons comprising a signal photon and an idler photon; combining the signal photon with the outgoing radar beam to generate a combined beam; sending the combined beam towards a target; receiving a return beam; detecting the signal photon from the return beam by a quantum illumination receiver; and making a joint detection with the idler photon.

公开(公告)号：US10591587B2

公开(公告)日：2020-03-17

申请号：US15564356

申请日：2016-04-07

申请人： BAE SYSTEMS PLC

发明人： Paul Michael Blanchard ,  Nicholas Giacomo Robert Colosimo

IPC分类号： G01S7/495 ,  F41H11/00 ,  G02F1/29 ,  F41H13/00

摘要： A directed-energy weapon counter measure apparatus and method for modifying a path of a focused electromagnetic energy beam (204) emitted by a directed energy weapon system so as to deflect it from a platform (200), the apparatus comprising an electromagnetic radiation source, communicably coupled to a control system. The control system is configured to create an atmospheric element (202) operative to simulate a physical electromagnetic radiation path modifying device within an atmospheric volume located in the path of the focused electromagnetic radiation beam (204) by causing electromagnetic radiation from the source to be applied to a selected plurality of three-dimensional portions of said atmospheric volume so as to heat and/or ionise the air with in said portions, wherein said selected portions are spatially located together in a substantially unbroken, three-dimensional configuration.