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    Chirped Coherent Laser Radar System and Method
    2.
    发明申请
    Chirped Coherent Laser Radar System and Method 审中-公开

    公开(公告)号：US20180188369A1

    公开(公告)日：2018-07-05

    申请号：US15862132

    申请日：2018-01-04

    Applicant: Digital Signal Corporation

    Inventor： Richard Lee Sebastian ,  Kendall L. Belsley

    IPC: G01S17/06 ,  G01S17/32 ,  G01S7/491 ,  G01C3/08 ,  G01S7/481

    CPC classification number: G01S17/06 ,  G01C3/08 ,  G01S7/4814 ,  G01S7/4818 ,  G01S7/4911 ,  G01S17/32 ,  G01S17/325

    Abstract: A laser radar system using collocated laser beams to unambiguously detects a range of a target and a range rate at which the target is moving relative to the laser radar system. Another aspect of various embodiments of the invention may relate to a laser radar system that uses multiple laser radar sections to obtain multiple simultaneous measurements (or substantially so), whereby both range and range rate can be determined without various temporal effects introduced by systems employing single laser sections taking sequential measurements. In addition, other aspects of various embodiments of the invention may enable faster determination of the range and rate of the target, a more accurate determination of the range and rate of the target, and/or may provide other advantages.

    SINGLE LASER LIDAR SYSTEM
    4.
    发明申请
    SINGLE LASER LIDAR SYSTEM 审中-公开

    公开(公告)号：US20180136316A1

    公开(公告)日：2018-05-17

    申请号：US15852049

    申请日：2017-12-22

    Applicant: DSCG Solutions, Inc.

    Inventor： Richard Sebastian ,  Kendall Belsley

    IPC: G01S7/481 ,  G01S7/493 ,  G01S17/58 ,  G01S17/32 ,  G01S17/06

    CPC classification number: G01S7/4814 ,  G01S7/493 ,  G01S17/06 ,  G01S17/325 ,  G01S17/58

    Abstract: In one general aspect, a non-transitory computer-readable storage medium storing instructions that when executed cause one or more processors to perform a process. The process can include producing emitted electromagnetic radiation based on a frequency pattern and receiving reflected electromagnetic radiation reflected from an object. The process can include defining combined frequency data based on a frequency of the emitted electromagnetic radiation and a frequency of the reflected electromagnetic radiation. The process can also include defining a set of spectral bins, based on a Fourier transform, in a frequency domain based on the combined frequency data, and can include identifying a subset of the set of spectral bins.

    PORTABLE PANORAMIC LASER MAPPING AND/OR PROJECTION SYSTEM
    5.
    发明申请
    PORTABLE PANORAMIC LASER MAPPING AND/OR PROJECTION SYSTEM 审中-公开

    公开(公告)号：US20180081059A1

    公开(公告)日：2018-03-22

    申请号：US14753937

    申请日：2015-06-29

    Applicant: Mezmeriz, Inc.

    Inventor： Clifford A. Lardin ,  Shahyaan Desai ,  Scott G. Adams

    IPC: G01S17/89 ,  G01S17/42 ,  G01S17/32 ,  G01S7/48 ,  G01S7/481 ,  G01S7/491

    CPC classification number: G01S17/89 ,  G01S7/4808 ,  G01S7/4817 ,  G01S7/4915 ,  G01S17/325 ,  G01S17/42

    Abstract: Techniques are described herein that are capable of forming a depth map and/or projecting an image onto object(s) based on the depth map. A depth map is a three-dimensional representation of an environment. Forming the depth map may utilize a progressive resolution refinement technique. For example, locating information may be determined in accordance with the progressive resolution refinement technique in response to performing a scan of a current point over a field of view. The current point is a point, selected from a plurality of points (e.g., a grid of points) in the field of view, to which a detection beam of light is directed at a respective time as the scan is performed over the field of view. In accordance with this example, the locating information may be coordinated with the scan to form the depth map.

    Single laser LIDAR system
    7.
    发明授权
    Single laser LIDAR system 有权

    公开(公告)号：US09851433B2

    公开(公告)日：2017-12-26

    申请号：US14575642

    申请日：2014-12-18

    Applicant: DSCG Solutions, Inc.

    Inventor： Richard Sebastian ,  Kendall Belsley

    IPC: G01C3/08 ,  G01S7/481 ,  G01S17/06 ,  G01S17/58 ,  G01S17/32 ,  G01S7/493

    CPC classification number: G01S7/4814 ,  G01S7/493 ,  G01S17/06 ,  G01S17/325 ,  G01S17/58

    Abstract: In one general aspect, a non-transitory computer-readable storage medium storing instructions that when executed cause one or more processors to perform a process. The process can include producing emitted electromagnetic radiation based on a frequency pattern and receiving reflected electromagnetic radiation reflected from an object. The process can include defining combined frequency data based on a frequency of the emitted electromagnetic radiation and a frequency of the reflected electromagnetic radiation. The process can also include defining a set of spectral bins, based on a Fourier transform, in a frequency domain based on the combined frequency data, and can include identifying a subset of the set of spectral bins.

    Compact LIDAR System
    9.
    发明申请
    Compact LIDAR System 审中-公开
    紧凑的激光雷达系统

    公开(公告)号：US20160299228A1

    公开(公告)日：2016-10-13

    申请号：US15092134

    申请日：2016-04-06

    Applicant: Oewaves, Inc.

    Inventor： Lutfollah Maleki ,  Andrey B. Matsko

    IPC: G01S17/32

    CPC classification number: G01S17/325 ,  G01S7/4911 ,  G01S17/42 ,  G01S17/89 ,  G01S17/936 ,  G02B6/29341 ,  H01S5/0085 ,  H01S5/021 ,  H01S5/0656 ,  H01S5/1032 ,  H01S5/142

    Abstract: An FM LIDAR system is described that includes a frequency modulated LIDAR system that incorporates a laser source that is optically coupled to a whispering gallery mode optical resonator. Light from the laser that is coupled into the whispering gallery mode optical resonator is coupled back out as a returning counterpropagating wave having a frequency characteristic of a whispering gallery mode of the optical resonator. This returning wave is used to reduce the linewidth of the source laser by optical injection. Modulation of the optical properties of the whispering gallery mode optical resonator results in modulation of the frequency of the frequencies supported by whispering gallery modes of the resonator, and provides a method for producing highly linear and reproducible optical chirps that are highly suited for use in a LIDAR system. Methods of using such an FM LIDAR system and vehicle assisting systems that incorporate such FM LIDAR systems are also described.

    Abstract translation: 描述了一种FM激光雷达系统，其包括频率调制的LIDAR系统，其包括光学耦合到耳语画廊模式光学谐振器的激光源。 耦合到耳语画廊模式光学谐振器的激光的光被耦合回作为具有光谐振器的耳语画廊模式的频率特性的返回反向传播波。 该返回波用于通过光学注入来减少源激光器的线宽。 对于耳语画廊模式光学谐振器的光学特性的调制，可以调节由谐振器的语音画廊模式所支持的频率的频率，并且提供了一种制造高度线性且可再生的光啁啾的方法，该方法非常适用于 激光雷达系统。 还描述了使用这样的FM激光雷达系统和结合这样的FM激光雷达系统的车辆辅助系统的方法。

    Three-dimensional tomographic imaging camera based on compressive sensing
    10.
    发明授权
    Three-dimensional tomographic imaging camera based on compressive sensing 有权
    基于压缩感知的三维断层成像摄像机

    公开(公告)号：US09465110B2

    公开(公告)日：2016-10-11

    申请号：US14050296

    申请日：2013-10-09

    Applicant: Naresh Satyan ,  Arseny Vasilyev ,  Amnon Yariv ,  George Rakuljic

    Inventor： Naresh Satyan ,  Arseny Vasilyev ,  Amnon Yariv ,  George Rakuljic

    IPC: G01S17/08 ,  G01S17/32 ,  G01S7/491 ,  G01S17/89

    CPC classification number: G01S17/08 ,  G01S7/4911 ,  G01S7/4913 ,  G01S17/325 ,  G01S17/89

    Abstract: A detection apparatus and method for FMCW LIDAR employ signals that are modified so that low-cost and low-speed photodetector arrays, such as CCD or CMOS cameras, can be employed for range detection. The LIDAR is designed to measure the range to one or more targets and includes a single mode swept frequency laser (SFL), whose optical frequency is varied with time, as a result of which, a target beam which is reflected back by the one or more targets is shifted in frequency from a reference beam by an amount that is proportional to the relative range to the one or more targets. The reflected target beam(s) is/are combined with the reference beam and detected by the photodetector array. In the case of a sparse number of targets to be detected, Compressive Sensing (CS) techniques can be employed by a processor to reduce the number of measurements necessary to determine the range of each target.

    Abstract translation: 用于FMCW LIDAR的检测装置和方法采用被修改的信号，使得可以使用诸如CCD或CMOS照相机的低成本和低速光电检测器阵列进行范围检测。 激光雷达设计用于测量到一个或多个目标的范围，并且包括单频扫频激光器（SFL），其光频随时间变化，结果是由一个或多个目标光束反射的目标光束 更多的目标在频率上从参考光束移位的量与一个或多个目标的相对范围成比例。 反射的目标光束与参考光束组合并由光电检测器阵列检测。 在要检测的目标数量稀少的情况下，处理器可以使用压缩感测（CS）技术来减少确定每个目标的范围所需的测量次数。

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