公开(公告)号：US20140375977A1

公开(公告)日：2014-12-25

申请号：US14311283

申请日：2014-06-21

申请人： David Ludwig ,  Alan C. Rogers ,  Medhat Azzazy ,  James W. Justice

发明人： David Ludwig ,  Alan C. Rogers ,  Medhat Azzazy ,  James W. Justice

IPC分类号： G01S17/89

CPC分类号： G01S17/89 ,  G01R31/3606

摘要： A LIDAR system that can accommodate both a clear atmosphere and be adaptable to environments in which smoke, dust or other particulates (i.e., a degraded environment) exist in the atmosphere around the target is described. The system operates in two fields of regard: clear view mode (wide field of regard) and a degraded view mode (narrow field of regard). The wide field of regard allows the output laser energy to be concentrated over a large number of detector pixels and thus resulting in high scene scan rate. The narrow field of regard allows concentrating the laser output energy on fewer pixels to compensate for the loss of laser energy due to atmospheric degradation. The combination of the ROIC and LIDAR modes of operation result in a system that is capable of operation under clear and degraded environments.

摘要翻译： 描述了能够适应清晰气氛并适应于在目标周围的大气中存在烟雾，灰尘或其它颗粒（即降解的环境）的环境的激光雷达系统。 该系统在两个方面工作：清晰视图模式（宽视野）和退化视图模式（窄视角）。 广泛的领域允许输出激光能量集中在大量的检测器像素上，从而导致高场景扫描速率。 狭义的领域允许将激光输出能量集中在较少的像素上，以补偿由于大气降解引起的激光能量的损失。 ROIC和LIDAR操作模式的组合导致能够在清晰和恶化环境下运行的系统。

公开(公告)号：US20140293263A1

公开(公告)日：2014-10-02

申请号：US13852457

申请日：2013-03-28

申请人： James Justice ,  Medhat Azzazy ,  David Ludwig

发明人： James Justice ,  Medhat Azzazy ,  David Ludwig

IPC分类号： G01S17/93 ,  G05D1/02

CPC分类号： G01S7/4817 ,  G01S17/42 ,  G01S17/89

摘要： A LIDAR system having a rotating geometric solid polyhedron reflective scanning and receiving element disposed on a rotation table element. The system is configured for scanning a transmitted electromagnetic beam such as a laser beam over a scene of interest in both elevation and azimuth and for receiving a reflected portion of the transmitted beam onto the focal plane detector array of the invention and to output an (x, y, range) set of point cloud coordinate image data.

摘要翻译： LIDAR系统具有设置在旋转台元件上的旋转几何实体多面体反射扫描和接收元件。 该系统被配置用于在高程和方位角两者的感兴趣的场景上扫描诸如激光束之类的传输电磁波束，并且用于将发射光束的反射部分接收到本发明的焦平面检测器阵列上并输出（x ，y，范围）组云坐标图像数据。

公开(公告)号：US20110032508A1

公开(公告)日：2011-02-10

申请号：US12804203

申请日：2010-07-16

申请人： David Ludwig ,  Medhat Azzazy

发明人： David Ludwig ,  Medhat Azzazy

IPC分类号： G01C3/08

CPC分类号： G01S17/89 ,  G01S17/36

摘要： A phase-sensing and scanning time-of-flight LADAR method and device are disclosed that take advantage of an atmospheric absorption bands within the solar IR spectrum.In the phase-sensing LADAR embodiment, an object is illuminated with electromagnetic energy such as a laser beam having a wavelength substantially equal to a predetermined atmospheric absorption band such as 1.39 microns. The transmitted laser beam is modulated at a predetermined frequency and has a first phase. The phase of the reflected and returned laser beam is altered proportional to the distance of the object and has a second phase. The first phase of the transmitted signal and the second phase of the received signal are compared and used to determine the distance of the object from the device. The system may comprise a modified laser that is tuned to operate in an atmospheric absorption band. A method to identify range ambiguity is disclosed by periodically altering the modulation frequency from a first modulation frequency to a second modulation frequency.In the scanning LADAR embodiment, an object is scanned or illuminated with electromagnetic energy having a wavelength substantially equal to a predetermined atmospheric absorption band at a first time and detects the reflection of the beam at a second time. The difference in time from the transmission of the scanning beam and the detection of the reflection of the beam from the object is used to calculate the range of the object.

摘要翻译： 公开了利用太阳IR光谱内的大气吸收带的相位感测和扫描飞行时间LADAR方法和装置。 在相位感测LADAR实施例中，用电磁能照射物体，例如具有基本上等于预定大气吸收带（例如1.39微米）的波长的激光束。 发射的激光束以预定的频率被调制并且具有第一相位。 反射和返回的激光束的相位与物体的距离成比例地变化并且具有第二相位。 将发送信号的第一阶段和接收信号的第二阶段进行比较并用于确定物体与设备的距离。 该系统可以包括被调整为在大气吸收带中操作的修改的激光器。 通过周期地将调制频率从第一调制频率改变到第二调制频率来公开识别范围模糊度的方法。 在扫描LADAR实施例中，用第一时间具有基本上等于预定大气吸收带的波长的电磁能量扫描或照射物体，并在第二时间检测光束的反射。 使用与扫描光束的透射的时间差和来自物体的光束的反射的检测来计算物体的范围。

公开(公告)号：US10078137B2

公开(公告)日：2018-09-18

申请号：US14311283

申请日：2014-06-21

申请人： David Ludwig ,  Alan C. Rogers ,  Medhat Azzazy ,  James W. Justice

发明人： David Ludwig ,  Alan C. Rogers ,  Medhat Azzazy ,  James W. Justice

IPC分类号： G01S17/89 ,  G01R31/36

CPC分类号： G01S17/89 ,  G01R31/382

摘要： A LIDAR system that can accommodate both a clear atmosphere and be adaptable to environments in which smoke, dust or other particulates (i.e., a degraded environment) exist in the atmosphere around the target is described. The system operates in two fields of regard: clear view mode (wide field of regard) and a degraded view mode (narrow field of regard). The wide field of regard allows the output laser energy to be concentrated over a large number of detector pixels and thus resulting in high scene scan rate. The narrow field of regard allows concentrating the laser output energy on fewer pixels to compensate for the loss of laser energy due to atmospheric degradation. The combination of the ROIC and LIDAR modes of operation result in a system that is capable of operation under clear and degraded environments.

公开(公告)号：US09129780B2

公开(公告)日：2015-09-08

申请号：US13338328

申请日：2011-12-28

申请人： Medhat Azzazy ,  David Ludwig ,  James Justice

发明人： Medhat Azzazy ,  David Ludwig ,  James Justice

IPC分类号： H01L27/00 ,  H01J31/48 ,  H01J29/89

CPC分类号： H01J31/48 ,  H01J29/89

摘要： A multilayer electronic imaging module and sensor system incorporating a micro-lens layer for imaging and collimating a received image from a field of regard, a photocathode layer for detecting photons from the micro-lens layer and generating an electron output, a micro-channel plate layer for receiving the output electrons emitted from the photocathode in response to the photon input and amplifying same and stacked readout circuitry for processing the electron output of the micro-channel plate. The sensor system of the invention may be provided in the form of a Cassegrain telescope assembly and includes electromagnetic imaging and scanning means and beam-splitting means for directed predetermined ranges of the received image to one or more photo-detector elements which may be in the form of the micro-channel imaging module of the invention.

摘要翻译： 一种多层电子成像模块和传感器系统，其包括用于从所考虑的领域成像和准直接收图像的微透镜层，用于从微透镜层检测光子并产生电子输出的光电阴极层，微通道板 层，用于响应于光子输入接收从光电阴极发射的输出电子，并放大用于处理微通道板的电子输出的相同和堆叠的读出电路。 本发明的传感器系统可以以卡塞格伦望远镜组件的形式提供，并且包括电磁成像和扫描装置和分束装置，用于将接收到的图像的指定预定范围定向到一个或多个光检测器元件， 形式的本发明的微通道成像模块。

公开(公告)号：US20120170029A1

公开(公告)日：2012-07-05

申请号：US13372184

申请日：2012-02-13

申请人： Medhat Azzazy ,  David Ludwig ,  James Justice

发明人： Medhat Azzazy ,  David Ludwig ,  James Justice

IPC分类号： G01C1/00

CPC分类号： H01J31/26 ,  G01S7/4816 ,  G01S7/4817 ,  G01S17/66 ,  G01S17/89 ,  H01J31/507

摘要： A sensor system is provided comprising a precision tracking sensor element and one or more acquisition sensor elements. The acquisition sensor elements may be mounted on a rotating base element that rotates about a first axis. The precision tracking sensor elements may be mounted on a hinged or pivoting element or gimbal on the housing and provided with drive means to permit a user to selectively manually or automatically direct it toward a scene target of interest detected by the acquisition sensor elements. At least one of the imaging elements in the precision tracking sensor or acquisition sensors is stacked micro-channel plate focal plane array element.

摘要翻译： 提供了一种包括精密跟踪传感器元件和一个或多个捕获传感器元件的传感器系统。 采集传感器元件可以安装在围绕第一轴线旋转的旋转的基座元件上。 精密跟踪传感器元件可以安装在壳体上的铰链或枢转元件或万向节上并且设置有驱动装置，以允许用户选择性地手动地或自动地将其引导到由采集传感器元件检测到的感兴趣的场景目标。 精密跟踪传感器或采集传感器中的成像元件中的至少一个是堆叠的微通道板焦平面阵列元件。

公开(公告)号：US20140125985A1

公开(公告)日：2014-05-08

申请号：US13671643

申请日：2012-11-08

申请人： James Justice ,  Medhat Azzazy ,  David Ludwig ,  Ying Hsu

发明人： James Justice ,  Medhat Azzazy ,  David Ludwig ,  Ying Hsu

IPC分类号： G01J3/45

CPC分类号： G01J3/0202 ,  G01J3/0256 ,  G01J3/0294 ,  G01J3/06 ,  G01J3/18 ,  G01J3/36 ,  G01J3/45

摘要： A sensor suite comprising a first electronic imaging element such as an LWIR imager element and a second imaging element such as a visible imager element. The transmitter operates with a plurality of selectable beam-forming optics or a tilt-tip element. The optics for the system may be configured in a Cassegrain-type configuration in cooperation with a plurality of beam-splitting elements to permit different ranges of the received optical input to be provided respectively to the first and second electronic imagers. One or a plurality of laser illuminator analysis spectrometers are provided for the detection and characterizing of incoming laser illumination from an external source which may be in the form of a micro-lamellar spectrometer element.

摘要翻译： 传感器套件，包括诸如LWIR成像器元件的第一电子成像元件和诸如可见成像元件的第二成像元件。 发射器与多个可选择的波束形成光学器件或倾斜尖端元件一起工作。 与多个分束元件配合，用于系统的光学元件可以配置为卡塞格伦型配置，以允许分别向第一和第二电子成像器提供所接收的光学输入的不同范围。 提供一个或多个激光照明器分析光谱仪用于检测和表征来自外部源的输入激光照明，其可以是微片层光谱仪元件的形式。

公开(公告)号：US20130107243A1

公开(公告)日：2013-05-02

申请号：US13099829

申请日：2011-05-03

申请人： David Ludwig ,  Medhat Azzazy

发明人： David Ludwig ,  Medhat Azzazy

IPC分类号： G01C3/08 ,  G06F17/15

CPC分类号： G01C3/08 ,  G01S7/4863 ,  G01S17/89 ,  G06F17/15

摘要： A device and method for LADAR ranging using relatively long laser pulse widths and slower system clock speeds is provided. The center points of the sent and received laser signal such as Gaussian laser pulses are identified by time sampling the sent and received laser signal waveforms at predetermined time positions.The signal energy within each time sample of the respective sent and received laser signals defines a clock “bin”. The received laser signal generates an output from a photodetector cell on a focal plane array that is converted into voltage. The signal energy is integrated using a capacitor array for each of the clock bins and is representative of the signal energy in each time sample.The output of the capacitor array is collected in buffer and digitized. Signal processing means extracts the center of the transmitted and received pulses and the time-of-flight calculated as the time between the transmitted and returned centers of the laser signal pulses.

摘要翻译： 提供了一种使用相对长的激光脉冲宽度和较慢系统时钟速度的LADAR测距装置和方法。 发送和接收的激光信号如高斯激光脉冲的中心点是通过在预定的时间位置对发送和接收的激光信号波形进行时间采样来识别的。 各个发送和接收的激光信号的每个时间采样内的信号能量定义一个时钟“bin”。 所接收的激光信号从焦平面阵列上的光电检测器单元产生转换成电压的输出。 信号能量使用每个时钟频率的电容器阵列进行集成，并且代表每个时间采样中的信号能量。 电容阵列的输出被收集在缓冲器中并进行数字化处理。 信号处理装置提取所发送和接收的脉冲的中心和飞行时间计算为激光信号脉冲的发送和返回中心之间的时间。

公开(公告)号：US08279420B2

公开(公告)日：2012-10-02

申请号：US12804203

申请日：2010-07-16

申请人： David Ludwig ,  Medhat Azzazy

发明人： David Ludwig ,  Medhat Azzazy

IPC分类号： G01C3/08

CPC分类号： G01S17/89 ,  G01S17/36

摘要： A phase-sensing and scanning time-of-flight LADAR method and device are disclosed that take advantage of an atmospheric absorption bands within the solar IR spectrum.In the phase-sensing LADAR embodiment, an object is illuminated with electromagnetic energy such as a laser beam having a wavelength substantially equal to a predetermined atmospheric absorption band such as 1.39 microns. The transmitted laser beam is modulated at a predetermined frequency and has a first phase. The phase of the reflected and returned laser beam is altered proportional to the distance of the object and has a second phase. The first phase of the transmitted signal and the second phase of the received signal are compared and used to determine the distance of the object from the device. The system may comprise a modified laser that is tuned to operate in an atmospheric absorption band. A method to identify range ambiguity is disclosed by periodically altering the modulation frequency from a first modulation frequency to a second modulation frequency.In the scanning LADAR embodiment, an object is scanned or illuminated with electromagnetic energy having a wavelength substantially equal to a predetermined atmospheric absorption band at a first time and detects the reflection of the beam at a second time. The difference in time from the transmission of the scanning beam and the detection of the reflection of the beam from the object is used to calculate the range of the object.

摘要翻译： 公开了利用太阳IR光谱内的大气吸收带的相位感测和扫描飞行时间LADAR方法和装置。 在相位感测LADAR实施例中，用电磁能照射物体，例如具有基本上等于预定大气吸收带（例如1.39微米）的波长的激光束。 发射的激光束以预定的频率被调制并且具有第一相位。 反射和返回的激光束的相位与物体的距离成比例地变化并且具有第二相位。 将发送信号的第一阶段和接收信号的第二阶段进行比较并用于确定物体与设备的距离。 该系统可以包括被调整为在大气吸收带中操作的修改的激光器。 通过周期地将调制频率从第一调制频率改变到第二调制频率来公开识别范围模糊度的方法。 在扫描LADAR实施例中，用第一次具有基本上等于预定大气吸收带的波长的电磁能量扫描或照射物体，并且在第二时间检测光束的反射。 使用与扫描光束的透射的时间差和来自物体的光束的反射的检测来计算物体的范围。

公开(公告)号：US20120170024A1

公开(公告)日：2012-07-05

申请号：US13397275

申请日：2012-02-15

申请人： Medhat Azzazy ,  James Justice ,  John Carson ,  David Ludwig ,  Ying Hsu

发明人： Medhat Azzazy ,  James Justice ,  John Carson ,  David Ludwig ,  Ying Hsu

IPC分类号： G01J3/28 ,  G01T1/36

CPC分类号： G01J3/06 ,  G01J3/0202 ,  G01J3/0256 ,  G01J3/0259 ,  G01J3/18 ,  G01J3/45 ,  G01S17/66 ,  G02B17/0808 ,  G02B17/0896 ,  G02B26/0808 ,  G02B26/0891

摘要： A sensor system is provided having a precision tracking sensor element and a micro-lamellar spectrometer for determining the wavelength of an electromagnetic source such as a laser designator source. Acquisition sensor elements may be provided and mounted on a rotating base element that rotates about a first axis. The precision tracking sensor elements may be mounted on a hinged or pivoting element or gimbal on the housing and provided with drive means to permit a user to selectively manually or automatically direct it toward a scene target of interest detected by the acquisition sensor elements. At least one of the imaging elements in the precision tracking sensor or acquisition sensors is stacked micro-channel plate focal plane array element.

摘要翻译： 提供了一种传感器系统，其具有用于确定诸如激光指示符源的电磁源的波长的精密跟踪传感器元件和微分散光谱仪。 采集传感器元件可以设置并安装在围绕第一轴线旋转的旋转基座元件上。 精密跟踪传感器元件可以安装在壳体上的铰链或枢转元件或万向节上并且设置有驱动装置，以允许用户选择性地手动地或自动地将其引导到由采集传感器元件检测到的感兴趣的场景目标。 精密跟踪传感器或采集传感器中的成像元件中的至少一个是堆叠的微通道板焦平面阵列元件。