Abstract:

Azimuth of flying object must be produced by position gyroscope instead of encoder when electro-optical countermeasure system is searching and tracing objects on a moving truck. Because of temperature drift and cumulative error of gyroscope fixed on searching axis, flying object cannot be discovered by optical equipment for tracing. The temperature drift and cumulative error of position gyroscope are very hard to be corrected, because they are nonlinear with time and temperature. An indirect method to correct the guiding information is presented to solve the problem.

Key words: Mobile searching, Target tracking, Gyroscope drift, Compensation, Dynamic calibration