公开(公告)号：US09897688B2

公开(公告)日：2018-02-20

申请号：US14554254

申请日：2014-11-26

申请人： BAE SYSTEMS Information & Electronic Systems Integration Inc.

发明人： Michael J. Choiniere ,  Brendan P. Cirillo ,  Robert W. Constantino ,  Egor V. Degtiarev ,  Francis M. Feda ,  Haijun H. Hu ,  Mark R. Mallalieu ,  Brian F. O'Donnell

IPC分类号： G06F19/00 ,  G01S7/484 ,  G01S17/02 ,  G01S7/48 ,  G01S17/10 ,  G06T5/50 ,  H04N5/33

CPC分类号： G01S7/484 ,  F41G3/06 ,  F41G3/145 ,  G01S7/4808 ,  G01S17/023 ,  G01S17/107 ,  G01S17/89 ,  G06T5/50 ,  G06T7/254 ,  G06T7/74 ,  G06T2207/10016 ,  G06T2207/10048 ,  G06T2207/20224 ,  H04N5/332

摘要： This invention describes a method for operating a weapon targeting system comprising the steps of using a laser to fire a single pulse at a target to obtain a reflected laser pulse; detecting the reflected laser pulse as a signal by a SWIR focal plane; detecting background illumination by using the SWIR focal plane; scene clutter filter and using optical filtering if it is necessary to suppress background illumination.

公开(公告)号：US09880281B2

公开(公告)日：2018-01-30

申请号：US14619405

申请日：2015-02-11

申请人： CONTINENTAL ADVANCED LIDAR SOLUTIONS US, LLC.

发明人： Patrick Gilliland ,  Robert W. Koseluk ,  Steve Penniman ,  Brad Short ,  Joseph Spagnolia ,  Roger Stettner

IPC分类号： G01C3/08 ,  G01S17/88 ,  B64G1/64 ,  B64D47/00 ,  B64D39/00 ,  G01S17/10 ,  G01S17/89 ,  G01S7/486 ,  G01S7/481

CPC分类号： G01S17/88 ,  B64D39/00 ,  B64D47/00 ,  B64G1/646 ,  G01S7/481 ,  G01S7/4863 ,  G01S7/4868 ,  G01S17/107 ,  G01S17/89

摘要： A system for landing or docking a mobile platform is enabled by a flash LADAR sensor having an adaptive controller with Automatic Gain Control (AGC). Range gating in the LADAR sensor penetrates through diffuse reflectors. The LADAR sensor adapted for landing/approach comprises a system controller, pulsed laser transmitter, transmit optics, receive optics, a focal plane array of detectors, a readout integrated circuit, camera support electronics and image processor, an image analysis and bias calculation processor, and a detector array bias control circuit. The system is capable of developing a complete 3-D scene from a single point of view.

公开(公告)号：US20170353712A1

公开(公告)日：2017-12-07

申请号：US15174712

申请日：2016-06-06

申请人： Raymond Kirk Price ,  Denis Demandolx ,  Michael Bleyer ,  Ravi Kiran Nalla ,  Jian Zhao

发明人： Raymond Kirk Price ,  Denis Demandolx ,  Michael Bleyer ,  Ravi Kiran Nalla ,  Jian Zhao

IPC分类号： H04N13/02 ,  G02B27/42 ,  G02B5/20

CPC分类号： H04N13/254 ,  G01S17/107 ,  G01S17/46 ,  G01S17/89 ,  G02B5/208 ,  G02B27/425 ,  H04N13/296 ,  H04N2213/001

摘要： Structured light systems for three dimensional imaging are provided with a pulsed light source, an imaging sensor and an infrared band-pass filter to selectively pass filtered light to the imaging sensor, as well as a global shutter to control exposure of the imaging sensor to light.

公开(公告)号：US09835849B2

公开(公告)日：2017-12-05

申请号：US13625178

申请日：2012-09-24

申请人： Elbit Systems Ltd.

发明人： Ron Schneider ,  Eyal Zohar

IPC分类号： G02B26/08 ,  G01S7/481 ,  G01S17/10 ,  G01S17/89

CPC分类号： G02B26/08 ,  G01S7/4816 ,  G01S17/107 ,  G01S17/89 ,  G02B26/0833

摘要： A device for image gating using an array of reflective elements is provided herein. The device includes an array of reflective elements, wherein each one of the reflective elements is movable within a range of a plurality of tilt positions, wherein the array is located at an image plane of the device, wherein the array is perpendicular to an optical axis of the device. The device further includes a control unit configured to control the reflective elements such that in at least some of the tilt positions, the reflective elements reflect the radiant flux at said image plane, to one or more projection planes. A gradual rotation of the reflective elements along the plurality of tilt positions result in a gradual increase or decrease in the intensity of the image reflected from the array of reflective elements while maintaining the image integrity.

公开(公告)号：US20170329013A1

公开(公告)日：2017-11-16

申请号：US15150563

申请日：2016-05-10

申请人： Raytheon Company

发明人： Maurice J. Halmos

IPC分类号： G01S17/58 ,  G01S7/481 ,  G01S17/10 ,  G01S17/89

CPC分类号： G01S17/58 ,  G01S7/4802 ,  G01S7/4816 ,  G01S7/487 ,  G01S7/497 ,  G01S17/10 ,  G01S17/107 ,  G01S17/88 ,  G01S17/89

摘要： Described embodiments provide a laser detection and ranging (LADAR) system. The LADAR system transmits a laser signal including a train of coherent pulses and receives a return signal based on the transmitted laser signal that is reflected from a target. The LADAR system forms one or more range bins of the return signal. Each range bin includes a train of coherent pulses formed based upon the transmitted laser signal. For each range bin, the LADAR system generates a phasogram associated with the train of coherent pulses. The phasogram is generated by determining a relative phase between the return signal and a reference signal. The LADAR system generates a vibration spectrum of the return signal based upon the generated phasogram.

公开(公告)号：US09699442B2

公开(公告)日：2017-07-04

申请号：US14647492

申请日：2013-11-14

申请人： E2V Semiconductors

发明人： Pierre Fereyre ,  Bruno Diasparra ,  Vincent Prevost

IPC分类号： H04N13/02 ,  G01S17/10 ,  G01S17/89 ,  G01S7/486 ,  G01S7/487 ,  H04N13/00

CPC分类号： H04N13/271 ,  G01S7/4863 ,  G01S7/4865 ,  G01S7/487 ,  G01S17/107 ,  G01S17/89 ,  H04N13/254 ,  H04N13/296 ,  H04N2013/0081

摘要： The invention relates to the production of images associating with each point of the image a depth, i.e. a distance between the observed point and the camera that produced the image.A light source emits N trains of light pulses. For each train of rank I=1 to N, charge is integrated in a short time slot of length Tint that starts with a temporal offset ti relative to the pulse, this temporal offset representing a journey time of the light pulse between the light source and the sensor after reflection from a point placed a distance di from the sensor. The temporal offset ti is the same for all the light pulses of the ith pulse train but the temporal offsets ti of the N trains are different from one another in order to correspond to various distances relative to the sensor. The charge photogenerated by the pulses of a given train is accumulated; then the accumulated charge is read in order to produce an image of rank i representing the pixels located at the distance di. The observation of a scene comprises producing N different images by virtue of which it is possible to associate a distance with each pixel.

公开(公告)号：US09696426B2

公开(公告)日：2017-07-04

申请号：US14397950

申请日：2013-03-18

申请人： Michigan Aerospace Corporation

发明人： David M. Zuk ,  Scott Lindemann

IPC分类号： G01C3/08 ,  G01S17/10 ,  G01S17/95 ,  G01S7/481

CPC分类号： G01S17/107 ,  G01S7/4817 ,  G01S7/4818 ,  G01S17/95 ,  Y02A90/19

摘要： A system for scanning light to define a range gated signal includes a pulsed coherent light source that directs light into the atmosphere, a light gathering instrument that receives the light modified by atmospheric backscatter and transfers the light onto an image plane, a scanner that scans collimated light from the image plane to form a range gated signal from the light modified by atmospheric backscatter, a control circuit that coordinates timing of a scan rate of the scanner and a pulse rate of the pulsed coherent light source so that the range gated signal is formed according to a desired range gate, an optical device onto which an image of the range gated signal is scanned, and an interferometer to which the image of the range gated signal is directed by the optical device. The interferometer is configured to modify the image according to a desired analysis.

公开(公告)号：US09625580B2

公开(公告)日：2017-04-18

申请号：US14147478

申请日：2014-01-03

申请人： Princeton Lightwave, Inc.

发明人： Evgenii Yuryevich Kotelnikov ,  William Paul Mordarski ,  Igor Kudryashov ,  Mark D. Entwistle ,  Sabbir Sajjad Rangwala

IPC分类号： G01C3/08 ,  G01S17/89 ,  G01S7/487 ,  G01S17/10 ,  G01S17/42

CPC分类号： G01S7/487 ,  G01S17/107 ,  G01S17/42 ,  G01S17/89

摘要： A method for developing a map of objects in a region surrounding a location is disclosed. The method includes interrogating the region along a detection axis with a series of optical pulses and detecting reflections of the optical pulses that originate at objects located along the detection axis. A multi-dimensional map of the region is developed by scanning the detection axis about the location in at least one dimension. The reflections are detected via a single-photon detector that is armed using a sub-gating scheme such that the single-photon detector selectively detects photons of reflections that originate only within each of a plurality of zones that collectively define the detection field. In some embodiments, the optical pulses have a wavelength within the range of 1350 nm to 1390 nm, which is a spectral range having a relatively high eye-safety threshold and a relatively low solar background.

公开(公告)号：US09618530B2

公开(公告)日：2017-04-11

申请号：US14427121

申请日：2013-04-05

申请人： Mitsubishi Electric Corporation

发明人： Masaharu Imaki ,  Nobuki Kotake ,  Shumpei Kameyama

IPC分类号： G01P3/36 ,  G01P5/26 ,  G01S17/95 ,  G01S17/10 ,  G01S17/58 ,  G01S7/483 ,  G01S7/481

CPC分类号： G01P5/26 ,  G01S7/4813 ,  G01S7/483 ,  G01S17/107 ,  G01S17/58 ,  G01S17/95 ,  Y02A90/19

摘要： There is provided a coherence length measurement device (10) that calculates a coherence length Lc based on a spectrum v calculated by an FFT device (9) and performs, in case where the coherence length Lc is shorter than an FFT gate width Gw, a setting change to shorten the FFT gate width Gw and a pulse width Pw, and the FFT device (9) performs frequency analysis on a received signal outputted from an A/D converter (8) by a unit of an FFT gate following the setting change to calculate the spectrum v of the received signal.

公开(公告)号：US09395440B2

公开(公告)日：2016-07-19

申请号：US12937948

申请日：2009-04-07

申请人： Olaf Schrey ,  Werner Brockherde ,  Bedrich Hosticka ,  Wiebke Ulfig

发明人： Olaf Schrey ,  Werner Brockherde ,  Bedrich Hosticka ,  Wiebke Ulfig

IPC分类号： G01C3/08 ,  H01J40/14 ,  G01S17/10 ,  G01S7/487 ,  G01S17/89

CPC分类号： G01C3/08 ,  G01S7/487 ,  G01S17/107 ,  G01S17/89

摘要： The present invention describes an optical distance measuring device having a pulsed radiation source that is implemented to transmit, in a temporally contiguous radiation pulse period, a radiation pulse having a pulse duration tp that is shorter than the radiation pulse period, and to transmit no radiation pulse in a temporally contiguous dark period. Further, the optical distance measuring device includes a detector for detecting different amounts of radiation in two overlapping detection periods during the radiation pulse period to capture reflections of the radiation pulse at an object surface and a background radiation and/or in two overlapping detection periods during the dark period to capture background radiation. The optical distance measuring device further includes an evaluator determining a signal depending on a distance of the optical distance measuring device to an object based on the detected amount of radiation. Further, the present invention provides a method for optical distance measurement and for multiple sampling.

摘要翻译： 本发明描述了一种具有脉冲辐射源的光学距离测量装置，其被实现为在时间上相邻的辐射脉冲周期内发射具有比辐射脉冲周期短的脉冲持续时间tp的辐射脉冲，并且不传输辐射 在时间上连续的黑暗时期脉冲。 此外，光学距离测量装置包括检测器，用于在辐射脉冲周期期间在两个重叠的检测周期中检测不同的辐射量，以捕获在物体表面和背景辐射处的辐射脉冲的反射和/或在两个重叠的检测周期期间 黑暗时期拍摄背景辐射。 光学距离测量装置还包括评估器，其基于检测到的辐射量确定取决于光学距离测量装置与对象的距离的信号。 此外，本发明提供了一种用于光学距离测量和多次采样的方法。