Angle Random Walk Minimization for Frequency Modulated Gyroscopes

Abstract

Compared to amplitude modulated gyroscopes, frequency modulated (FM) gyroscopes have demonstrated excellent long-term stability. A notable limitation with FM gyroscopes is FM operation can decrease short-term stability. Short-term stability is typically quantified via angle random walk (ARW). This work presents an FM gyroscope ARW minimization method. As the measured and predicted values of minimized ARW are in agreement, this work provides a means to account for the competing effects associated with amplitude and frequency stability.