Research on SAW Sensor Bias Stability

摘要

The objective is to develop SAW accelerometers with improved bias stability characteristics for moderately accurate inertial navigation. Methods of fabricating dual-resonator crystals with low absolute and differential aging characteristics have been developed. Tests have been performed on integrated noise levels for simulated guidance system mission times of up to 20 minutes. Error rates less than 50 meters per hour in position of accuracy have been achieved. (Author)