DRIFT CORRECTOR FOR GAS RATE GYROSCOPE

PURPOSE:To obtain an accurate bearing detection signal from a gas rate gyroscope, by performing a drift correction using a drift signal which will be outputted from the gas rate gyroscope when a moving unit is stopped. CONSTITUTION:A drift signal which will be outputted from a gas rate gyroscope 1 responding to the bearing of movement set on a moving unit such as unmanned vehicle when the moving unit is stopped is sampled and stored into a memory 5 controlled by a CPU8 via an input port 3 through an intergrator 2. The contents of the memory 5 are read out through the CPU8 and fed to the integrator 2 via an ouptut port 4 to correct the drift in the detection bearing with the gyroscope 1 when the moving unit is moving. Thus, an accurate bearing detection signal of the moving unit can be obtained from the gas rate gyroscope.