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    • 68. 发明公开
    • Automatic gain control for fiber optic gyroscope deterministic control loops
    • Regelkreise eines Faserkreisels自动售货机
    • EP2196768A1
    • 2010-06-16
    • EP09177186.5
    • 2009-11-26
    • Northrop Grumman Guidance and Electronics Company, Inc.
    • Pavlath, George A.Tazartes, Daniel A.
    • G01C19/72
    • G01C19/726
    • An automatic gain control system for a fiber optic gyroscope control loop (13) includes an adjustable gain applied to the gyro output signal. A calibration signal is injected into the fiber optic gyroscope control loop (13). A compensation loop (42) receives signals output from the control loop (13) and also receives calibration signals. The compensation loop (42) processes the calibration signal to produce a compensation signal that is combined with signals output from the control loop (13) to provide a compensated fiber optic gyroscope output signal. An automatic gain control loop (51) is connected between the compensation loop (42) and the adjustable gain applied to the fiber optic gyroscope output signal. The automatic gain control loop includes a gain error demodulator (50) that multiplies the compensated fiber optic gyroscope output signal and the compensation signal together to produce a gain error signal used to control the adjustable gain to stabilize the gyro control loop gain.
    • 用于光纤陀螺仪控制回路(13)的自动增益控制系统包括施加到陀螺输出信号的可调增益。 校准信号被注入到光纤陀螺仪控制回路(13)中。 补偿回路(42)接收从控制回路(13)输出的信号,并接收校准信号。 补偿回路(42)处理校准信号以产生与从控制回路(13)输出的信号组合的补偿信号,以提供经补偿的光纤陀螺仪输出信号。 自动增益控制回路(51)连接在补偿回路(42)和施加到光纤陀螺仪输出信号的可调增益之间。 自动增益控制回路包括增益误差解调器(50),其将经补偿的光纤陀螺仪输出信号和补偿信号相乘,以产生用于控制可调节增益的增益误差信号,以稳定陀螺仪控制环路增益。