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1.发明授权Combined laser altimeter and ground velocity measurement apparatus and a fiber optic filter edge detector of doppler shifts for use therein 有权组合的激光高度计和地面速度测量装置以及用于其中的多普勒频移的光纤滤波器边缘检测器公开(公告)号：US07379166B2
公开(公告)日：2008-05-27
申请号：US11329443
申请日：2006-01-11
申请人： Clinton T. Meneely , Gary E. Halama
发明人： Clinton T. Meneely , Gary E. Halama
CPC分类号： G01S17/87 , G01C5/005 , G01P3/366 , G01S7/4812 , G01S7/4817 , G01S17/58 , G01S17/933
摘要： A fiber optic filter edge detector of Doppler shifted light comprises: a laser source for emitting pulsed laser light substantially over a first fiber optic path; an optical lens for directing laser light emitted from the first fiber optic path to free-space and for receiving laser light returns from free-space and focusing the laser light returns to the first fiber optic path; an edge filter optical element fiber coupled to the first fiber optic path for receiving the laser light returns, the edge filter optical element operative to transmit a first portion of the laser light returns through a second fiber optic path and to reflect a second portion of the laser light returns through a third fiber optic path; and at least one light detector optically coupled to the second and third fiber optic paths.
摘要翻译： 多普勒偏移光的光纤滤波器边缘检测器包括：用于基本上在第一光纤路径上发射脉冲激光的激光源; 用于将从第一光纤路径发射的激光引导到自由空间并用于接收激光的光学透镜从自由空间返回并且聚焦激光返回到第一光纤路径; 耦合到用于接收激光的第一光纤路径的边缘滤波器光学元件光纤返回，用于透射激光的第一部分的边缘滤光器光学元件通过第二光纤路径返回并且反射第二部分 激光通过第三光纤通路返回; 以及光学耦合到第二和第三光纤路径的至少一个光检测器。
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公开(公告)号：US20080030709A1
公开(公告)日：2008-02-07
申请号：US11460699
申请日：2006-07-28
申请人： Clinton T. Meneely , Mark D. Ray , Gary E. Halama
发明人： Clinton T. Meneely , Mark D. Ray , Gary E. Halama
摘要： A laser-based altimeter for use on-board an aircraft comprises: a first housing including a hollow cavity and an exit aperture, and a second housing including a hollow cavity and an entrance aperture. A laser source and a plurality of first optical elements are fixedly supported in a compact configuration within the hollow cavity of the first housing. The plurality of first optical elements directs laser beams generated by the laser source from a first optical path to a second optical path which exits the first housing through the exit aperture. At least one second optical element is configured within the hollow cavity of the second housing to form a telescope with a predetermined field of view. The telescope receives at the entrance aperture reflections of the pulsed laser beams from objects within the field of view thereof and focuses the received reflections substantially to a focal point. A light detector is included for receiving and converting the focused reflections into electrical signals representative thereof. The first and second housings are fixedly secured in alignment with respect to each other to permit the second optical path of the pulsed laser beams to be adjusted within the field of view of the telescope. A mirror apparatus is the only first optical element of the plurality that is fixedly adjustable for directing the second optical path within the field of view of the telescope, the mirror apparatus being lockable in place after final adjustment. The first and second housings may be part of a common housing.
摘要翻译： 用于飞机上的基于激光的高度计包括：包括中空腔和出口孔的第一壳体，以及包括中空腔和入口孔的第二壳体。 激光源和多个第一光学元件以紧凑的形式固定地支撑在第一壳体的中空腔内。 多个第一光学元件将由激光源产生的激光束从第一光路引导到通过出射孔离开第一壳体的第二光路。 至少一个第二光学元件构造在第二壳体的中空腔内以形成具有预定视场的望远镜。 望远镜在其视场内的物体的入射孔径反射中接收脉冲激光束，并将接收的反射基本上聚焦到焦点。 包括一个光检测器，用于接收并将聚焦的反射转换成代表其的电信号。 第一和第二壳体相对于彼此固定地固定，以允许脉冲激光束的第二光路在望远镜的视场内被调节。 镜子装置是多个中唯一的第一光学元件，其可固定地可调节以将第二光路引导到望远镜的视场内，镜装置可在最终调节之后被锁定就位。 第一和第二壳体可以是公共壳体的一部分。
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公开(公告)号：US07079228B2
公开(公告)日：2006-07-18
申请号：US10825062
申请日：2004-04-15
CPC分类号： G01S17/87 , G01C5/005 , G01P3/366 , G01S7/4812 , G01S7/4817 , G01S17/58 , G01S17/933
摘要： Combined laser-based apparatus for determining both altitude and ground velocity of an aircraft comprises: a laser source for emitting pulsed laser beams substantially at a predetermined wavelength; a plurality of first optical elements for directing the laser beams from a first optical path to a second optical path which exits the first optical elements; a plurality of second optical elements configured to form a telescope, the second optical path and telescope field of view being fixedly co-aligned; an optical scanner for directing the second optical path and telescope field of view to desired ground positions while maintaining the co-alignment thereof; the telescope for receiving Doppler wavelength shifted reflections of the pulsed laser beams and directing the received ground reflections substantially over a third optical path; an optical filter element for separating the ground reflections of the third optical path into first and second portions that are dependent on the Doppler wavelength shift of the ground reflections; and processing means for determining altitude and ground velocity of the aircraft based on the first and second portions.
摘要翻译： 用于确定飞行器的高度和地面速度的组合的基于激光的装置包括：用于发射基本上以预定波长的脉冲激光束的激光源; 用于将激光束从第一光路引导到离开第一光学元件的第二光路的多个第一光学元件; 配置成形成望远镜的多个第二光学元件，第二光路和望远镜视场被固定地对齐; 光学扫描器，用于将第二光路和望远镜的视野引导到期望的接地位置，同时保持其对准; 用于接收脉冲激光束的多普勒波长偏移反射并将接收到的地面反射基本上引导到第三光路上的望远镜; 光滤波器元件，用于将第三光路的接地反射分离成依赖于地面反射的多普勒波长偏移的第一和第二部分; 以及用于基于第一和第二部分确定飞行器的高度和地面速度的处理装置。
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公开(公告)号：US07400386B2
公开(公告)日：2008-07-15
申请号：US11443820
申请日：2006-05-30
CPC分类号： G01S17/87 , G01C5/005 , G01P3/366 , G01S7/4812 , G01S7/4817 , G01S17/58 , G01S17/933
摘要： Combined laser-based apparatus for determining both altitude and ground velocity of an aircraft comprises: a laser source for emitting pulsed laser beams substantially at a predetermined wavelength; a plurality of first optical elements for directing the laser beams from a first optical path to a second optical path which exits the first optical elements; a plurality of second optical elements configured to form a telescope, the second optical path and telescope field of view being fixedly co-aligned; an optical scanner for directing the second optical path and telescope field of view to desired ground positions while maintaining the co-alignment thereof; the telescope for receiving Doppler wavelength shifted reflections of the pulsed laser beams and directing the received ground reflections substantially over a third optical path; an optical filter element for separating the ground reflections of the third optical path into first and second portions that are dependent on the Doppler wavelength shift of the ground reflections; and processing means for determining altitude and ground velocity of the aircraft based on the first and second portions.
摘要翻译： 用于确定飞行器的高度和地面速度的组合的基于激光的装置包括：用于发射基本上以预定波长的脉冲激光束的激光源; 用于将激光束从第一光路引导到离开第一光学元件的第二光路的多个第一光学元件; 配置成形成望远镜的多个第二光学元件，第二光路和望远镜视场被固定地对齐; 光学扫描器，用于将第二光路和望远镜的视野引导到期望的接地位置，同时保持其对准; 用于接收脉冲激光束的多普勒波长偏移反射并将接收到的地面反射基本上引导到第三光路上的望远镜; 光滤波器元件，用于将第三光路的接地反射分离为第一和第二部分，这取决于地面反射的多普勒波长偏移; 以及用于基于第一和第二部分确定飞行器的高度和地面速度的处理装置。
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公开(公告)号：US07106424B2
公开(公告)日：2006-09-12
申请号：US10386334
申请日：2003-03-11
申请人： Clinton T. Meneely , Mark D. Ray , Gary E. Halama
发明人： Clinton T. Meneely , Mark D. Ray , Gary E. Halama
IPC分类号： G01C3/08
摘要： A laser-based altimeter for use on-board an aircraft comprises: a first housing including a hollow cavity and an exit aperture, and a second housing including a hollow cavity and an entrance aperture. A laser source and a plurality of first optical elements are fixedly supported in a compact configuration within the hollow cavity of the first housing. The plurality of first optical elements directs laser beams generated by the laser source from a first optical path to a second optical path which exits the first housing through the exit aperture. At least one second optical element is configured within the hollow cavity of the second housing to form a telescope with a predetermined field of view. The telescope receives at the entrance aperture reflections of the pulsed laser beams from objects within the field of view thereof and focuses the received reflections substantially to a focal point. A light detector is included for receiving and converting the focused reflections into electrical signals representative thereof. The first and second housings are fixedly secured in alignment with respect to each other to permit the second optical path of the pulsed laser beams to be adjusted within the field of view of the telescope. A mirror apparatus is the only first optical element of the plurality that is fixedly adjustable for directing the second optical path within the field of view of the telescope, the mirror apparatus being lockable in place after final adjustment. The first and second housings may be part of a common housing.
摘要翻译： 用于飞机上的基于激光的高度计包括：包括中空腔和出口孔的第一壳体，以及包括中空腔和入口孔的第二壳体。 激光源和多个第一光学元件以紧凑的形式固定地支撑在第一壳体的中空腔内。 多个第一光学元件将由激光源产生的激光束从第一光路引导到通过出射孔离开第一壳体的第二光路。 至少一个第二光学元件构造在第二壳体的中空腔内以形成具有预定视场的望远镜。 望远镜在其视场内的物体的入射孔径反射中接收脉冲激光束，并将接收的反射基本上聚焦到焦点。 包括一个光检测器，用于接收并将聚焦的反射转换成代表其的电信号。 第一和第二壳体相对于彼此固定地固定，以允许脉冲激光束的第二光路在望远镜的视场内被调节。 镜子装置是多个中唯一的第一光学元件，其可固定地可调节以将第二光路引导到望远镜的视场内，镜装置可在最终调节之后被锁定就位。 第一和第二壳体可以是公共壳体的一部分。
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公开(公告)号：US20130103317A1
公开(公告)日：2013-04-25
申请号：US13280922
申请日：2011-10-25
CPC分类号： G01S17/95 , G01N15/0205 , G01S7/497 , Y02A90/19
摘要： In one aspect, methods of determining a size distribution of water droplets in a cloud are described herein. In some embodiments, a method of determining a size distribution of water droplets in a cloud comprises sampling a depth of a cloud with a beam of electromagnetic radiation, measuring echo intensities of the electromagnetic radiation returned from the cloud with a detector, determining a measured optical extinction coefficient from the measured echo intensities, determining a measured backscatter coefficient from the measured echo intensities, determining a lidar ratio from the measured optical extinction coefficient and the measured backscatter coefficient, determining from the lidar ratio a value pair comprising a shape parameter (μ) and median volume diameter (DMVD) of the water droplets, and determining a size distribution of the water droplets using the value pair (μ, DMVD).
摘要翻译： 在一个方面，本文描述了确定云中水滴尺寸分布的方法。 在一些实施例中，确定云中水滴的尺寸分布的方法包括用电磁辐射束对云的深度进行采样，使用检测器测量从云返回的电磁辐射的回波强度，确定测量的光 根据测量的回波强度确定消光系数，从测量的回波强度确定测量的反向散射系数，从测量的光学消光系数和测量的反向散射系数确定激光雷达比，从激光雷达比确定包括形状参数（μ）的值对， 和水滴的中值体积直径（DMVD），以及使用值对（mu，DMVD）确定水滴的尺寸分布。
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公开(公告)号：US07342647B2
公开(公告)日：2008-03-11
申请号：US11460699
申请日：2006-07-28
申请人： Clinton T. McNeely , Mark D. Ray , Gary E. Halama
发明人： Clinton T. McNeely , Mark D. Ray , Gary E. Halama
摘要： A laser-based altimeter for use on-board an aircraft comprises: a first housing including a hollow cavity and an exit aperture, and a second housing including a hollow cavity and an entrance aperture. A laser source and a plurality of first optical elements are fixedly supported in a compact configuration within the hollow cavity of the first housing. The plurality of first optical elements directs laser beams generated by the laser source from a first optical path to a second optical path which exits the first housing through the exit aperture. At least one second optical element is configured within the hollow cavity of the second housing to form a telescope with a predetermined field of view. The telescope receives at the entrance aperture reflections of the pulsed laser beams from objects within the field of view thereof and focuses the received reflections substantially to a focal point. A light detector is included for receiving and converting the focused reflections into electrical signals representative thereof. The first and second housings are fixedly secured in alignment with respect to each other to permit the second optical path of the pulsed laser beams to be adjusted within the field of view of the telescope. A mirror apparatus is the only first optical element of the plurality that is fixedly adjustable for directing the second optical path within the field of view of the telescope, the mirror apparatus being lockable in place after final adjustment. The first and second housings may be part of a common housing.
摘要翻译： 用于飞机上的基于激光的高度计包括：包括中空腔和出口孔的第一壳体，以及包括中空腔和入口孔的第二壳体。 激光源和多个第一光学元件以紧凑的形式固定地支撑在第一壳体的中空腔内。 多个第一光学元件将由激光源产生的激光束从第一光路引导到通过出射孔离开第一壳体的第二光路。 至少一个第二光学元件构造在第二壳体的中空腔内以形成具有预定视场的望远镜。 望远镜在其视场内的物体的入射孔径反射中接收脉冲激光束，并将接收的反射基本上聚焦到焦点。 包括一个光检测器，用于接收并将聚焦的反射转换成代表其的电信号。 第一和第二壳体相对于彼此固定地固定，以允许脉冲激光束的第二光路在望远镜的视场内被调节。 镜子装置是多个中唯一的第一光学元件，其可固定地可调节以将第二光路引导到望远镜的视场内，镜装置可在最终调节之后被锁定就位。 第一和第二壳体可以是公共壳体的一部分。
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