GYROSCOPIC NAVIGATION SYSTEM

摘要

A compact, lightweight, cost effective, self-contained standby electronic navigation system (100) with high signal-to-noise ratio and good dynamic stability is provided. The system includes a first sensor module (122) for providing a plurality of rotational rate signals, a second sensor module (124) for providing a plurality of compensation signals, and a microcontroller module (126) for processing the rotational rate and compensation signals and sending the signals to a display (102) for displaying attitude information, directional information, and turn coordinate information on a single screen simultaneously. In one embodiment , the first sensor module (122) includes a plurality of rotational sensors made of piezoelectric elements. The piezoelectric elements (X1-X4, Y1-Y4, Z1-Z8) are made from a single sheet of piezoelectric material so that the elements possess uniform characteristics, and are arranged to reduce systematic drift and random noise normally present in a rotational rate sensor. The sensors can be configured on a single multi-sensor chip.