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105 条记录 (耗时 0.013 秒)

    Laser daylight designation and pointing
    2.
    发明授权
    Laser daylight designation and pointing 有权
    激光日光指定和指示

    公开(公告)号：US09590000B2

    公开(公告)日：2017-03-07

    申请号：US13515863

    申请日：2010-12-14

    申请人： Avishay Guetta ,  Michael Yagudaev ,  Doron Korngut

    发明人： Avishay Guetta ,  Michael Yagudaev ,  Doron Korngut

    IPC分类号： G01S3/08 ,  H01L27/146 ,  F41G3/14 ,  H01L27/148 ,  F41G3/02 ,  F41G7/22

    CPC分类号： F41G7/2293 ,  F41G3/02 ,  F41G3/145 ,  F41G7/2246 ,  F41G7/226 ,  G01S7/4914 ,  G01S17/32 ,  G01S17/89 ,  H01L27/146 ,  H01L27/14643 ,  H01L27/148

    摘要： A laser designator system using modulated CW laser diodes and a conventional high pixel count image sensor array, such as CCD or CMOS array. These two technologies, diode lasers and imaging sensor arrays are reliable, widely used and inexpensive technologies, as compared with prior art pulsed laser systems. These systems are distinguished from the prior art systems in that they filter the laser signal spatially, by collecting light over a comparatively long period of time from a very few pixels out of the entire field of view of the image sensor array. This is in contrast to the prior art systems where the laser signal is filtered temporarily, over a very short time span, but over a large fraction of the field of view. By spatially filtering the signal outputs of the individual pixels, it becomes possible to subtract the background illumination from the illuminated laser spot.

    摘要翻译： 一种使用调制CW激光二极管和常规高像素数像素传感器阵列（如CCD或CMOS阵列）的激光指示系统。 与现有技术的脉冲激光系统相比，这两种技术，二极管激光器和成像传感器阵列是可靠的，广泛使用的和便宜的技术。 这些系统与现有技术的系统不同，它们通过从图像传感器阵列的整个视野​​内的极少数像素中收集较长时间的光，从而在空间上对激光信号进行滤波。 这与现有技术的系统不同，其中激光信号在非常短的时间跨度上临时滤波，但是在视场的很大一部分上。 通过对各个像素的信号输出进行空间滤波，可以从照明的激光光斑中减去背景照明。

    Laser doppler velocimeter
    3.
    发明授权
    Laser doppler velocimeter 失效
    激光多普勒测速仪

    公开(公告)号：US5272513A

    公开(公告)日：1993-12-21

    申请号：US804888

    申请日：1991-12-06

    申请人： Kerry J. Vahala ,  Philip L. Rogers

    发明人： Kerry J. Vahala ,  Philip L. Rogers

    IPC分类号： G01P3/36 ,  G01P5/26 ,  G01S7/484 ,  G01S7/499 ,  G01S17/58 ,  G01S3/08

    CPC分类号： G01S7/484 ,  G01P5/26 ,  G01S17/58 ,  G01S7/499

    摘要： A laser Doppler velocimeter is formed using erbium-doped fiber as the lasing medium. Within the velocimeter, all optical signals, transmitted and received, are handled by optical fibers. A telescope with a single optical fiber input/output interface acts as both the transmission device to focus the radiation at a specified point, and as the receiving system for collecting reflected radiation. The portion of the reflected radiation collected by the receiving system is analyzed to determine the Doppler shift caused by targets at the focal point of the telescope.

    摘要翻译： 使用掺铒光纤作为激光介质形成激光多普勒测速仪。 在速度计内，发射和接收的所有光信号由光纤处理。 具有单个光纤输入/输出接口的望远镜既用作将辐射聚焦在指定点处的传输装置，也用作收集反射辐射的接收系统。 分析由接收系统收集的反射辐射的部分，以确定由望远镜焦点上的目标引起的多普勒频移。

    Sky wave direction finder
    4.
    发明授权
    Sky wave direction finder 失效
    天波方向探测器

    公开(公告)号：US5032844A

    公开(公告)日：1991-07-16

    申请号：US326356

    申请日：1989-03-21

    申请人： Jackie E. Hipp ,  Douglas N. Travers

    发明人： Jackie E. Hipp ,  Douglas N. Travers

    IPC分类号： G01S3/08 ,  H01Q7/00 ,  H01Q21/26

    CPC分类号： G01S3/085 ,  H01Q21/26 ,  H01Q7/00

    摘要： A system using two magnetic quadrupole antennas, two magnetic dipole antennas and means for processing the respective antenna signal outputs provides unambiguous estimates of elevation and polarization for an incident RF signal. The system uses an efficient procedure to process the signals from a small aperture array of fixed loop elements for the purpose of providing radio direction of arrival information that is free of intrinsic polarization error. The directional information is developed by performing a simultaneous arctangent operation on signals output from the antennas or as the measured phase difference between a quadrature summed quadrupole output and a quadrature summed dipole output compensated by a phase offset between the dipole antennas and the quadrupole antennas.

    摘要翻译： 使用两个四极四极天线的系统，两个磁偶极子天线和用于处理各个天线信号输出的装置提供对入射RF信号的仰角和极化的明确估计。 该系统使用有效的过程来处理来自固定环路元件的小孔径阵列的信号，以便提供无固有偏振误差的无线电到达信息方向。 通过对从天线输出的信号进行同时反正切运算，或者通过偶极天线和四极天线之间的相位偏移补偿的正交相加四极输出和正交相加偶极输出之间的测量相位差来进行方向信息的开发。