Scanning Non-Scanning LIDAR
    1.
    发明申请
    Scanning Non-Scanning LIDAR 有权
    扫描非扫描激光雷达

    公开(公告)号:US20130044309A1

    公开(公告)日:2013-02-21

    申请号:US13396313

    申请日:2012-02-14

    IPC分类号: G01C3/08

    摘要: An all fiber optic laser based scanning system for real time terrain mapping under degraded visual conditions is disclosed. A laser output is modulated to achieve a desired pulse width and pulse repetition frequency (PRF) and the modulated signal is amplified. The amplified optical signals are split into N channels that correspond to N elements of an optically phased array that steers light by modulating the phase of light entering and exiting the optical system. By applying a linear phase shift across the beam's wave front, the light propagating along the system's optical axis is steered to an off-axis angle. A real time map of an underlying terrain is accomplished by sweeping the N channel array across the terrain while collecting range information from each scan grid.

    摘要翻译: 公开了一种基于光纤激光的扫描系统,用于在恶化的视觉条件下的实时地形映射。 调制激光输出以实现期望的脉冲宽度和脉冲重复频率(PRF),并且调制信号被放大。 放大的光信号被分成N个通道,其对应于通过调制进入和离开光学系统的光的相位来引导光的光学相控阵列的N个元件。 通过在波束的波前施加线性相移,沿着系统的光轴传播的光被转向离轴角。 通过在每个扫描网格上收集范围信息的同时,跨越地形扫描N通道阵列来实现底层地形的实时图。

    Measurement Assisted Aerodynamic State Estimator
    2.
    发明申请
    Measurement Assisted Aerodynamic State Estimator 审中-公开
    测量辅助气动状态估计器

    公开(公告)号:US20130311013A1

    公开(公告)日:2013-11-21

    申请号:US13473101

    申请日:2012-05-16

    IPC分类号: B64C19/00

    摘要: An aerodynamic state estimation system includes a real-time actual measurement device, an air data computer, and a plurality of sensors. The measurement device receives laser scatter energy indicative of one or more atmospheric data parameters and outputs one or more truth measurements. The air data computer module receives the one or more truth measurements, calculates one or more state parameter estimations based on a plurality of functional parameters, and outputs at least one of the one or more truth measurements and the one or more state parameter estimations as one or more high accuracy state parameters, The plurality of sensors, located at the air data computer module, measure the plurality of functional parameters.

    摘要翻译: 空气动力学状态估计系统包括实时实际测量装置,空气数据计算机和多个传感器。 测量装置接收表示一个或多个大气数据参数的激光散射能量,并输出一个或多个真实测量值。 空中数据计算机模块接收一个或多个真值测量,基于多个功能参数来计算一个或多个状态参数估计,并且将一个或多个真值测量和一个或多个状态参数估计中的至少一个输出为一个 或更高精度的状态参数。位于空中数据计算机模块的多个传感器测量多个功能参数。

    High Power Laser Doppler Velocimeter With Multiple Amplification Stages
    3.
    发明申请
    High Power Laser Doppler Velocimeter With Multiple Amplification Stages 有权
    具有多个放大阶段的大功率激光多普勒测速仪

    公开(公告)号:US20130162976A1

    公开(公告)日:2013-06-27

    申请号:US13475536

    申请日:2012-05-18

    IPC分类号: G01P5/26

    摘要: Systems and methods for laser based measurement of air parameters are disclosed. An example system includes a source of radiation, an amplification system with one or more power amplification stages, a transceiver, and an optical mixer. The source produces a plurality of beams, and the amplification system is configured to amplify the beams. The transceiver is configured to transmit the modulated beam to, and receive a scattered beam from a target region. The optical mixer is configured to determine a difference between the scattered beam and a reference beam, which is used to determine a Doppler shift therefrom. In certain embodiments, the amplification system includes a fiber preamplifier and one or more fiber power amplifiers stages.

    摘要翻译: 公开了用于激光测量空气参数的系统和方法。 示例性系统包括辐射源,具有一个或多个功率放大级的放大系统,收发器和光学混合器。 源产生多个光束,并且放大系统被配置为放大光束。 收发器被配置为将调制的波束发射到目标区域并且从目标区域接收散射光束。 光学混合器被配置为确定散射光束和参考光束之间的差异,其用于确定其中的多普勒频移。 在某些实施例中,放大系统包括光纤前置放大器和一个或多个光纤功率放大器级。