Triolocation compensation algorithm for single-shaft fiber-optic gyroscope in oil well survey

The invention discloses a triolocation compensation algorithm for a single-shaft fiber-optic gyroscope in the oil well survey. According to the algorithm, an installation structure of the gyroscope and an accelerometer is adopted, a compensation calculation algorithm is conducted on output values, and the values are recorded by the accelerometer in the motor transposition process; the single-shaft fiber-optic gyroscope and the single-shaft accelerometer are adopted for forming a gyro inclinometer, the fiber-optic gyroscope and the single-shaft accelerometer are mechanically connected with a transposition mechanism through slip rings, the direction and the well deviation of each measuring point can be calculated in a triolocation mode without zero returning operation, transposition is conducted in one direction, operation is conducted cyclically by 0 degree, 90 degrees, 180 degrees, 270 degrees and 360 degrees, and the number of position point data needed in calculation is only three. According to a triolocation treatment method for the single-shaft fiber-optic gyroscope in the oil well survey, measurement time can be shortened, instrument cost is saved, and the algorithm is designed for determining the inclination and the direction of the gyro inclinometer in the fields such as oil logging and mine exploration and is worthy of application and popularization.