Frequency modulated (FM) gyroscopes are a new class of inertial sensors which measure the angular rotation rate. They offer several advantages including accurate scale factor, large dynamic range, and robust performance over temperature variation. The frequency of the output signal should be detected precisely to extract the slight frequency variations in the modulated signal. This research focuses on the design of high-resolution frequency to digital converters (FDC) for use as the interface circuit for FM gyroscopes. In particular, it is intended to optimize noise performance, dynamic range, and power consumption of the readout circuit. The design procedure can be classified into circuit-level analysis and system-level optimization.
Project ended: 10/01/2020