Method for improving full-temperature zero-bias stability of high-precision fiber-optic gyroscope

The invention relates to a method for improving the full-temperature zero-bias stability of a high-precision fiber-optic gyroscope, which comprises the following steps: setting temperature acquisition points inside and outside a fiber-optic ring, and acquiring the temperature acquisition points in real time to obtain temperature data; establishing a corresponding temperature weight model, and setting the weight in the model; removing fault temperature points and temperature information, and adjusting parameters of the temperature weight model in real time; and finally, setting the compensation reference temperature point outside the working temperature range of the fiber-optic gyroscope, calculating a compensation coefficient, compensating the output of each temperature point of the fiber-optic gyroscope according to the compensation coefficient, and simultaneously calculating a demodulation value and outputting an output value of each temperature. According to the method, the full-temperature zero-bias stabi