Patent ID: 6427131
Filing Date: 2002-07-30
Classification: G01C

Abstract:
A processing method for motion measurement, comprising the steps of:(1) producing three-axis angular rate signals by an angular rate producer and three-axis acceleration signals by an acceleration producer; (2) converting said three-axis angular rate signals into digital angular increments and converting said three-axis acceleration signals into digital velocity increments by an angular increment and velocity increment producer; (3) computing attitude and heading angle measurements using said three-axis digital angular increments and three-axis velocity increments by an attitude and heading processor; and (4) producing temperature signals by a thermal sensing producer to a thermal processor; computing temperature control commands using said input temperature signals, temperature scale factor, and pre-determined operating temperature of said angular rate producer and said acceleration producer; producing driving signals to a heater device using said temperature control commands; outputting said driving signals to said heater device, wherein the step (4) is performed in parallel with the steps (1) to (3) in order to further obtain stable said digital three-axis angular increment values, digital three-axis velocity increment values, and attitude and heading angle measurements.