FIELD: optics.
SUBSTANCE: invention relates to biaxial gyroscopic stabilizers placed on moving objects for obtaining a still image and controlling the line of sight of optical devices. The image stabilization system on a movable base consists of an indicator gyroscopic platform with a stabilized load installed on it, a gimbal, a gyroscope with angle sensors, an amplifying-correcting device representing a stabilization circuit having a correcting device and an amplifier, which are connected in series. The input of the amplifier receives a signal from the comparison device calculating the difference between the current reading of the gyroscope angle sensor and the guidance signal. The image stabilization system also has an adder, to the input of which the amplifier signal and the signal from the link for removing the constant component of the AVS, and the output is connected to the correction link, the output of which is connected to the adder, the input of which receives the signal from the current sensor and the output signal of the correction link, the output of which is connected to the power amplifier, the output of the power amplifier is connected to the motor. In this case, the system contains angular velocity sensors (AVSs) that measure the angular velocity of the stabilized load along the pitch, azimuth, roll channels, and the AVS output is connected to the constant component removal link, and the motor is connected with its first output to the AVS input, its second output is connected to the stabilized load, and its third output is connected to the input of the angle sensor and its fourth output is connected to the current sensor.
EFFECT: improving the accuracy of stabilization by compensating for cross-links of angular velocity sensors (AVSs) and removing the constant component from the output signal of AVSs.
1 cl, 4 dwg
