Direct digital control of dry-tuned rotor gyros

A method of designing the rebalance control system for a dry-tuned gyro using a digital controller is described. Control functions are synthesized to achieve a minimum settling time in the transient response. The need to eliminate interactions between the gyro control axes is included in the design policy. Sensitivity of the system to mismatch in the controller is examined and methods suggested to improve this aspect of performance. Sensitivity analysis is exploited to show how coefficients in the control functions may be rounded to allow reduced computation time in the processor.