To stabilize an electro-optical tracking system subject to external disturbances, a Type III rate loop with gyro is added.
This paper describes the characteristics of the gyro and shows how the rate loop can be made up using gyro. It also presents a linear compensator design based on the root locus method and reinforces the design using the describing function method to overcome saturation nonlinearity of the actuator.
The evaluation of the design is carried out by computer simulation of the tracking test.
