公开(公告)号：US06665063B2

公开(公告)日：2003-12-16

申请号：US10109372

申请日：2002-03-28

Applicant: James R. Jamieson ,  Mark D. Ray

Inventor： James R. Jamieson ,  Mark D. Ray

IPC: G01B1126

CPC classification number: G01S7/4818 ,  B64D45/08 ,  G01C23/005 ,  G01P5/26 ,  G01S7/4812 ,  G01S7/4813 ,  G01S7/4817 ,  G01S7/483 ,  G01S7/486 ,  G01S7/51 ,  G01S17/42 ,  G01S17/58 ,  G01S17/87 ,  G01S17/88 ,  G01S17/933

Abstract: A distributed laser based obstacle awareness system for use on-board an aircraft comprises: a plurality of obstacle detecting sensors disposable at a corresponding plurality of locations of the aircraft for emitting laser energy from the aircraft into a predetermined region of space and for receiving return laser energy from an obstacle in the predetermined region of space; a laser source for emitting a laser beam along an optical path; and a plurality of bistatic optical channels. Each channel comprises a plurality of transmission fiber optic cables and at least one receiver fiber optic cable and extends from the laser source to a corresponding obstacle detecting sensor of the plurality to direct the laser beam from the optical path to its corresponding obstacle detecting sensor of the plurality for emission into the corresponding predetermined region of space; and a light detector. Return laser energy from an obstacle received by any one of the obstacle detecting sensors is propagated through the receiver fiber optic cable of the corresponding optical channel to the light detector for use in detection of the obstacle in the corresponding predetermined region of space. In one embodiment, an optical switch is disposed in the optical path to redirect the laser beam in a time sequence manner from the optical path to selected optical channels of the plurality.

公开(公告)号：US07095488B2

公开(公告)日：2006-08-22

申请号：US10347908

申请日：2003-01-21

Applicant: James R. Jamieson ,  Mark D. Ray ,  Joseph T. Pesik

Inventor： James R. Jamieson ,  Mark D. Ray ,  Joseph T. Pesik

IPC: G01C3/08 ,  G01C1/00 ,  G01B11/26

CPC classification number: G01S7/4817 ,  G01S7/4811 ,  G01S7/483 ,  G01S7/499 ,  G01S17/42 ,  G01S17/89 ,  G01S17/933

Abstract: A forward looking cross-track laser altimeter comprises: a first configuration of optical elements for guiding pulsed laser beams along a first optical path; a mirror element coupled to a scanner and disposed in the first optical path, the scanner operative to oscillate the mirror element to sweep the reflected laser beams back and forth across a line at a predetermined frequency; the scanner and mirror element configurable to reflect the pulsed laser beams along paths forward and downward at a predetermined angle to the flight path of the aircraft, wherein the pulsed laser beam paths are caused to be line swept across a ground track forward the aircraft; the mirror element for receiving returns of the pulsed laser beams from the terrain and objects on the terrain forward the aircraft and reflecting the returns along a second optical path to a light detector which produces a return signal in response thereto; a first circuit governed by the return signals for measuring times-of-flight of the returns and generating time-of-flight signals corresponding thereto; the scanner for generating a line sweep position signal; and a second circuit for generating for each return a data profile comprising range and line sweep position thereof based on the corresponding time-of-flight and position signals.

Abstract translation: 一种前视的跨轨道激光高度计包括：用于沿着第一光路引导脉冲激光束的光学元件的第一配置; 耦合到扫描器并设置在第一光路中的反射镜元件，扫描仪可操作以使镜子元件振荡以以预定频率跨过线扫描反射的激光束; 扫描器和镜子元件可配置成沿着沿着飞行器的飞行路径的预定角度向前和向下沿着路径反射脉冲激光束，其中使脉冲激光束路径沿着飞机前方的地面轨道扫过; 用于接收来自地形的脉冲激光束和地形上的物体的返回的反射镜元件，并且将第二光路反射回到光检测器，光检测器响应于该检测器产生返回信号; 由返回信号控制的第一电路，用于测量返回的飞行时间并产生对应于其的飞行时间信号; 用于产生行扫描位置信号的扫描器; 以及第二电路，用于基于相应的飞行时间和位置信号，为每个返回产生包括其范围和行扫描位置的数据简档。

公开(公告)号：US06985212B2

公开(公告)日：2006-01-10

申请号：US10440918

申请日：2003-05-19

Applicant: James R. Jamieson ,  Mark D. Ray

Inventor： James R. Jamieson ,  Mark D. Ray

IPC: G01C3/08 ,  G01C1/00 ,  G01B11/26

CPC classification number: G01S17/89 ,  G01S7/4802 ,  G01S7/4811 ,  G01S7/4818 ,  G01S13/78 ,  G01S13/86 ,  G01S17/023 ,  G01S17/42 ,  G01S17/58 ,  G01S17/66 ,  G01S17/74

Abstract: A method of laser scanning a perimeter zone of a target site for the detection of potential threats comprises: scanning a pulsed laser beam across the perimeter zone; receiving echoes from the pulsed laser beam during the perimeter zone scan; deriving range data corresponding to the received echoes; determining position data of the received echoes in the perimeter zone; forming a scene image of a scan of the perimeter zone based on the range and position data of the received echoes thereof; repeating the steps of scanning, receiving, deriving, determining and forming for a plurality of perimeter zone scans to form scene images of each scan of the plurality; and comparing scene images of the plurality to detect a potential threat in the perimeter zone. In addition, a method of authenticating a potential threat detected in a perimeter zone of a target site comprises: detecting the potential threat and upon detection, interrogating the potential threat for a response by a wireless transmission; declaring the potential threat unauthorized if no response is transmitted wirelessly within a predetermined time interval from the interrogation; receiving the response, if transmitted, and determining if the response comprises a proper access code; and declaring the potential threat unauthorized if the received response is determined not to comprise the proper access code.

公开(公告)号：US07026600B2

公开(公告)日：2006-04-11

申请号：US10789114

申请日：2004-02-26

Applicant: James R. Jamieson ,  Mark D. Ray ,  Clinton T. Meneely

Inventor： James R. Jamieson ,  Mark D. Ray ,  Clinton T. Meneely

IPC: H01J40/14

CPC classification number: G06K9/4652 ,  G01N21/251 ,  G01N21/359 ,  G01S7/4802 ,  G01S7/484 ,  G01S17/87 ,  G01S17/89

Abstract: A method of identifying an object in a laser beam illuminated scene based on material types comprises the steps of: emitting a pulsed beam of laser energy, each beam pulse comprising a plurality of different discrete wavelength emission components; illuminating a predetermined scene with the pulsed beam; receiving return laser pulses from objects within the illuminated scene, each return laser pulse comprising return components corresponding to the plurality of different discrete wavelength emission components; determining spectral reflectance values for the plurality of return components of each return laser pulse; determining a material type for each return laser pulse of the illuminated scene based on the plurality of reflectance values of the corresponding return pulse; indexing each determined material type to a position in the illuminated scene; and identifying an object in the illuminated scene based on material types and indexed positions thereof in the scene. A counterpart system for carrying out the method is also disclosed.

Abstract translation: 基于材料类型识别激光束照明场景中的物体的方法包括以下步骤：发射激光能量的脉冲束，每个束脉冲包括多个不同的离散波长发射分量; 用脉冲光照射预定场景; 从所述照明场景内的物体接收返回激光脉冲，每个返回激光脉冲包括对应于所述多个不同离散波长发射部件的返回分量; 确定每个返回激光脉冲的多个返回分量的光谱反射率值; 基于对应的返回脉冲的多个反射率值确定照明场景的每个返回激光脉冲的材料类型; 将每个确定的材料类型索引到照明场景中的位置; 并且基于场景中的材料类型和索引位置来识别照明场景中的对象。 还公开了用于执行该方法的对应系统。

公开(公告)号：US06556282B2

公开(公告)日：2003-04-29

申请号：US09946057

申请日：2001-09-04

Applicant: James R. Jamieson ,  Mark D. Ray ,  Clinton T. Meneely

Inventor： James R. Jamieson ,  Mark D. Ray ,  Clinton T. Meneely

IPC: G01C308

CPC classification number: G01S17/58 ,  B64D45/08 ,  G01C23/005 ,  G01P5/26 ,  G01S7/4802 ,  G01S7/481 ,  G01S7/4812 ,  G01S7/4813 ,  G01S7/4817 ,  G01S7/483 ,  G01S17/42 ,  G01S17/87 ,  G01S17/88 ,  G01S17/933

Abstract: A combined system of a LOAS and a LIDAR system comprises: a LIDAR arrangement of optical elements for generating a first coherent beam of light at a first predetermined wavelength; a LOAS arrangement of optical elements for generating a second coherent beam of light at a second predetermined wavelength; a dichroic filter optical element for directing the first and second coherent beams of light substantially on a first common optical path towards an aperture of a beam expander; at least one output optical element which directs both of the expanded first and second coherent beams of light from the system, the at least one output optical element also for receiving and directing reflections of the first and second coherent beams of light to the beam expander wherein the beam reflections are collected; and wherein the dichroic filter optical element separates and directs the collected light corresponding to the first coherent beam back to the LIDAR arrangement of optical elements for use in determining flow velocity, and separates and directs the collected light corresponding to the second coherent beam back to the LOAS arrangement of optical elements for use in detecting at least one object.

Abstract translation: LOAS和LIDAR系统的组合系统包括：用于产生第一预定波长的第一相干光束的光学元件的LIDAR布置; 用于产生第二预定波长的第二相干光束的光学元件的LOAS布置; 二向色滤光器光学元件，用于将第一和第二相干光束基本上引导到第一公共光路上朝向光束扩展器的孔径; 引导来自系统的扩展的第一和第二相干光束两者的至少一个输出光学元件，所述至少一个输出光学元件还用于接收和引导第一和第二相干光束到光束扩展器的反射，其中 收集光束反射; 并且其中所述二向色滤光器光学元件将对应于所述第一相干光束的所收集的光分离并引导回到用于确定流速的光学元件的LIDAR布置，并且将对应于所述第二相干光束的所收集的光分离并引导回到 用于检测至少一个物体的光学元件的LOAS布置。

公开(公告)号：US06819265B2

公开(公告)日：2004-11-16

申请号：US10225610

申请日：2002-08-22

Applicant: James R. Jamieson ,  Mark D. Ray

Inventor： James R. Jamieson ,  Mark D. Ray

IPC: G08B2100

CPC classification number: G01S17/95 ,  B64D15/20 ,  G01N21/21 ,  G01S7/4802 ,  G01S7/499 ,  G01S17/42 ,  G01S17/87 ,  G08B19/02 ,  Y02A90/19

Abstract: An ice detection warning system mountable on board an aircraft for inflight monitoring of the airspace ahead of the aircraft comprises: a first plurality of optical elements configured to direct a pulsed laser beam at a first wavelength from a laser source into the airspace ahead of the aircraft; a second plurality of optical elements configured to separate received backscattering of light from the laser beam into a plurality of predetermined wavelengths; a plurality of light detectors for detecting the light of the separated plurality of wavelengths, respectively, and generating respectively corresponding plurality of electrical signals representative of the light detected thereby; and a processor for processing the plurality of electrical signals to determine if airspace conditions ahead of the aircraft are likely to cause ice accretion on the surface of the aircraft, and for generating a warning indicative thereof. In one embodiment, the warning system includes an optical scanner operative to scan the pulsed laser beam into the airspace ahead of the aircraft with a predetermined scan pattern, the scanner also being operative to receive the backscattering of light from the pulsed laser beam and direct it to the second plurality of optical elements which is configured to separate the received backscattering of light into the plurality of predetermined wavelengths.

Abstract translation: 安装在飞机上的用于对飞机前面的空域进行机上监视的冰检测警告系统包括：第一多个光学元件，被配置为将来自激光源的第一波长的脉冲激光束引导到飞机前面的空域 ; 第二多个光学元件，被配置为将接收到的来自激光束的后向散射分离成多个预定波长; 多个光检测器，用于分别检测分离的多个波长的光，并分别产生表示由此检测到的光的相应的多个电信号; 以及处理器，用于处理多个电信号，以确定飞行器之前的空域状况是否可能导致飞机表面积冰，并产生指示其的警告。 在一个实施例中，警报系统包括光学扫描器，其操作以预定扫描图案将脉冲激光束扫描到飞机前方的空气空间内，扫描器还可操作以接收来自脉冲激光束的光的后向散射并将其引导 涉及被配置为将所接收的光的后向散射分离成多个预定波长的第二多个光学元件。

公开(公告)号：US06650407B2

公开(公告)日：2003-11-18

申请号：US09946058

申请日：2001-09-04

Applicant: James R. Jamieson ,  Mark D. Ray

Inventor： James R. Jamieson ,  Mark D. Ray

IPC: G02B1126

CPC classification number: G01S17/026 ,  B64D45/08 ,  G01C23/00 ,  G01P5/26 ,  G01S7/481 ,  G01S7/4811 ,  G01S7/4812 ,  G01S7/4813 ,  G01S7/4817 ,  G01S7/483 ,  G01S7/499 ,  G01S7/51 ,  G01S17/42 ,  G01S17/58 ,  G01S17/87 ,  G01S17/88 ,  G01S17/933 ,  G02B26/101

Abstract: A wide field scanning laser obstacle awareness system (LOAS) comprises: a plurality of first optical elements configured to direct a portion of a pulsed laser beam generated by a light source to a light detector, and to direct the pulsed laser beam to a beam expander wherein the pulsed laser beam is expanded; and at least one rotationally operated second optical element for directing the expanded pulsed laser beam from the system with a predetermined pattern scanned azimuthally over a wide field, the at least one rotationally operated second optical element also for receiving reflections of the pulsed laser beam from at least one object along the predetermined pattern and directing them to the laser beam expander wherein the laser beam reflections are focused; the plurality of first optical elements also configured to direct the focused laser beam reflections to the light detector for use in determining the location of the at least one object.

Abstract translation: 宽场扫描激光障碍物识别系统（LOAS）包括：多个第一光学元件，被配置为将由光源产生的脉冲激光束的一部分引导到光检测器，并将脉冲激光束引导到扩束器 其中所述脉冲激光束被扩展; 以及至少一个旋转操作的第二光学元件，用于以宽广的场方位扫描的预定图案将来自系统的扩展的脉冲激光束引导，所述至少一个旋转操作的第二光学元件还用于接收脉冲激光束从 沿着预定图案的至少一个物体，并将它们引导到激光束扩张器，其中激光束反射被聚焦; 多个第一光学元件还被配置为将聚焦的激光束反射引导到光检测器，以用于确定至少一个物体的位置。

公开(公告)号：US06542227B2

公开(公告)日：2003-04-01

申请号：US09946048

申请日：2001-09-04

Applicant: James R. Jamieson ,  Mark D. Ray ,  Clinton T. Meneely

Inventor： James R. Jamieson ,  Mark D. Ray ,  Clinton T. Meneely

IPC: G01P336

CPC classification number: G01S7/4817 ,  G01S7/4812 ,  G01S7/4813 ,  G01S7/483 ,  G01S17/42 ,  G01S17/58 ,  G01S17/87 ,  G01S17/88 ,  G01S17/933

Abstract: A LIDAR system for measuring flow velocity in three axes comprises: a LIDAR arrangement of optical elements for generating a coherent beam of light and directing the coherent beam of light by at least one rotationally operated optical element from the system with a predetermined pattern, the at least one rotationally operated optical element also for receiving reflections from particles along the predetermined pattern and directing the beam reflections to a light detector which converts the beam reflections into representative electrical signals; and a processor for detecting bursts from the electrical signals which are representative of light beam reflections from at least one particle substantially at a corresponding position along the predetermined pattern, and for computing a Doppler frequency for each of a selected plurality of detected bursts from the signal content thereof. The processor also capable of associating the selected plurality of detected bursts with their corresponding positions along the predetermined pattern and for computing a three axis flow velocity measurement from at least three of the selected plurality of computed Doppler frequencies and their corresponding positions along the predetermined pattern. A method of measuring flow velocity in three axes is further disclosed.

Abstract translation: 用于测量三个轴中的流速的激光雷达系统包括：用于产生相干光束的光学元件的激光雷达（LIDAR）布置，并且由具有预定图案的系统的至少一个旋转操作的光学元件引导相干光束， 至少一个旋转操作的光学元件，还用于接收沿着预定图案的颗粒的反射，并将光束反射引导到将光束反射转换成代表性电信号的光检测器; 以及处理器，用于从代表来自至少一个粒子的光束反射的电信号中检测突发，所述至少一个粒子基本上在沿着预定图案的对应位置处，并且用于从所述信号计算所选择的多个检测到的脉冲串中的每一个的多普勒频率 其含量。 处理器还能够将所选择的多个检测到的突发与其预定模式的对应位置相关联，并且用于从所选择的多个计算多普勒频率中的至少三个及其沿预定模式的对应位置计算三轴流速度测量。 进一步公开了一种测量三轴流速的方法。

公开(公告)号：US07697125B2

公开(公告)日：2010-04-13

申请号：US11747560

申请日：2007-05-11

Applicant: James W. Swenson ,  Mark D. Ray ,  Malcolm B. McIntosh ,  Clinton T. Meneely

Inventor： James W. Swenson ,  Mark D. Ray ,  Malcolm B. McIntosh ,  Clinton T. Meneely

IPC: G01B11/26

CPC classification number: G01S7/4812 ,  G01S7/4817 ,  G01S7/483 ,  G01S17/10 ,  G01S17/42 ,  G01S17/88 ,  G01S17/89 ,  G02B19/0028 ,  G02B19/0085 ,  G02B26/105

Abstract: A LADAR has adjustable operational parameters to accommodate surveillance of a particular site. The LADAR includes a controller, a laser source governed by the controller to generate a laser beam pulsed at a pulse repetition rate, an optical scanner, a first set of optics, a first drive assembly governed by the controller, a second drive assembly governed by the controller, a light detector, a second set of optics for guiding laser echo pulses, and a processor coupled to the light detector to accommodate surveillance of the particular site.

Abstract translation: LADAR具有可调整的操作参数，以适应特定场所的监视。 LADAR包括控制器，由控制器控制的激光源，以产生以脉冲重复频率脉冲的激光束，光学扫描器，第一组光学器件，由控制器控制的第一驱动组件，由第一驱动组件控制的第二驱动组件 所述控制器，光检测器，用于引导激光回波脉冲的第二组光学器件，以及耦合到所述光检测器以适应所述特定位置的监视的处理器。

公开(公告)号：US08144325B2

公开(公告)日：2012-03-27

申请号：US12508038

申请日：2009-07-23

Applicant: Mark D. Ray ,  Michael P. Nesnidal

Inventor： Mark D. Ray ,  Michael P. Nesnidal

IPC: G01N21/00 ,  G01J4/00

CPC classification number: B64D15/20

Abstract: An airborne multiple field-of-view water droplet sensor includes an illumination portion and a detection portion. The illumination portion includes a first optical beam emitter configured to output a light beam. The detection portion includes a kaleidoscope configured to channel a first portion of the backscattered light towards an inner reflective surface of a circle-to-line converter, a multiple field of view subsystem having at least a first detector configured to receive light reflected by the circle-to-line converter, and a single field-of-view subsystem configured to receive a second portion of the backscattered light, the second portion not having been reflected by the circle-to-line converter. The single field-of-view subsystem may include a dual channel circular polarization detector for distinguishing between liquid water droplets and ice crystals based on information in the single field-of-view.

Abstract translation: 机载多视野水滴传感器包括照明部分和检测部分。 照明部分包括被配置为输出光束的第一光束发射器。 检测部分包括万花筒，该万花筒被配置为将反向散射光的第一部分朝着圆形到直线转换器的内部反射表面传播，多视野子系统具有至少第一检测器，该第一检测器被配置为接收由圆到线转换器反射的光 配置为接收所述反向散射光的第二部分的第一部分，所述第二部分未被所述圆形到线性转换器反射。 单个视野子系统可以包括双通道圆偏振检测器，用于基于单个视场中的信息来区分液体水滴和冰晶。