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    • 1. 发明授权
    • State-deviation-estimation circuit employing a phase-locked-loop phase
reference
    • 采用锁相环相位参考的状态偏差估计电路
    • US4791573A
    • 1988-12-13
    • US902815
    • 1986-09-02
    • Paul D. ZemanyKirby A. SmithJohn A. Smith
    • Paul D. ZemanyKirby A. SmithJohn A. Smith
    • G05D1/10G05D1/08B64G1/28B64G1/36
    • G05D1/108
    • A system (34) for determining deviations in the state of motion of a projectile (10) from its intended state includes a comparison module (38) that receives the outputs S of a sensor array (36). The comparison module (38) converts the sensor outputs to a measurement vector Z.sub.m and computes the deviation of this measurement vector from an intended measurement vector Z.sub.0 received from a control system. The comparison module (38) then determines the difference E.sub.Z between this measured deviation and the deviation predicted by a Kalman filter (44, 46). In generating the measurement vector Z.sub.m from the outputs of the sensor array (36), the comparison module (38) "de-spins" the array outputs in accordance with the output of a phase reference (42), whose purpose is to indicate the phase with respect to gravity of the spin of the projectile (10) about its longitudinal axis. The Kalman filter's state-deviation estimator (46) weights the vector output of the comparison module (36) and adds it to the output of the Kalman filter's state-deviation predictor (44) to provide an updated state-deviation estimation E.sub.X (t:t), which the state-deviation predictor (44) then uses as a basis for its next cycle. The output of the comparison module (38) constitutes a measure of the performance of the state-deviation predictor (44) and is used as a correction factor for the phase reference (42) so that the system acts as a phase-locked loop to lock the phase reference (42) onto the projectile spin without the need for an external sensor to determine the direction of gravity.
    • 用于确定弹丸(10)的运动状态与其预期状态的偏差的系统(34)包括:接收传感器阵列(36)的输出S的比较模块(38)。 比较模块(38)将传感器输出转换为测量矢量Zm,并计算该测量矢量与从控制系统接收到的预期测量矢量Z0的偏差。 比较模块(38)然后确定该测量的偏差与由卡尔曼滤波器(44,46)预测的偏差之间的差EZ。 在从传感器阵列(36)的输出生成测量矢量Zm时,比较模块(38)根据相位基准(42)的输出“去”旋转阵列输出,其目的是指示 相对于射弹(10)的旋转的重力围绕其纵向轴线。 卡尔曼滤波器的状态偏差估计器(46)对比较模块(36)的矢量输出进行加权,并将其加到卡尔曼滤波器的状态偏差预测器(44)的输出端,以提供更新的状态偏差估计EX(t: t),状态偏差预测器(44)然后用作其下一个周期的基础。 比较模块(38)的输出构成了状态偏差预测器(44)的性能的量度,并被用作相位参考(42)的校正因子,使得系统充当锁相环 将相位基准(42)锁定在抛射体旋转上,而不需要外部传感器来确定重力方向。
    • 3. 发明授权
    • Method and apparatus for detecting and disabling optical weapon sight
    • 用于检测和禁用光学武器瞄准器的方法和装置
    • US08132491B2
    • 2012-03-13
    • US11451114
    • 2006-06-12
    • Edward C. RealPaul D. ZemanyPaul A. Zank
    • Edward C. RealPaul D. ZemanyPaul A. Zank
    • B64D1/04
    • F41H13/0056
    • The present invention is an apparatus for detecting and disabling a human eye or optical device used in the fire control of a weapon. This apparatus comprises a prism having a plurality of peripheral reflective surface. This prism has a longitudinal axis and rotating about said longitudinal axis. An infrared (IR) laser directs an infrared laser beam toward the prism side that the laser beam is reflected toward the human eye or optical device, such that the IR laser beam is retroreflected to the prism. There is also an infrared IR detector which detects the IR retroreflected laser beam reflected from the prism. A visible light wavelength laser which produces a visible light wavelength laser beam which is reflected from the prism to the human eye or optical device to disable the human eye or optical device to prevent use of the weapon.
    • 本发明是一种用于检测和禁用在武器的火控中使用的人眼或光学装置的装置。 该装置包括具有多个外围反射表面的棱镜。 该棱镜具有纵向轴线并围绕所述纵向轴线旋转。 红外(IR)激光器将红外激光束引导到棱镜侧,激光束朝向人眼或光学装置反射,使得IR激光束向后反射到棱镜。 还有一个红外IR检测器,它检测从棱镜反射的红外回射激光束。 一种可见光波长激光器,其产生从棱镜反射到人眼或光学装置的可见光波长激光束,以禁止人眼或光学装置阻止使用武器。