Fiber optic gyroscope total station temperature compensation algorithm based on BP neural network model

doi:10.11947/j.AGCS.2025.20240467

Abstract

Abstract:

Fiber optic gyroscope total station can determine the geographic north direction by sensing earth rotation. However, it is found that the temperature change is an important factor affecting the accuracy and stability of the fiber optic gyroscope. Based on the correlation analysis between the output data of fiber optic gyroscope and the temperature, a BP neural network modeling temperature compensation method for fiber optic gyroscope is designed. The temperature compensation experiment is designed to verify the feasibility and validity of the model. Compared with the common polynomial model, the zero-bias stability of the compensated gyro output is improved to some extent. The method has been applied to a coal mine's north-seeking orientation measurement and obtained certain orientation effect by comparing with the result of traverse measurement.

Key words: fiber optic gyroscope, temperature compensation, BP neural network, Allan variance

CLC Number:

P228

Chenxi ZOU, Zhen SHI, Di LIU, Ziyi YANG. Fiber optic gyroscope total station temperature compensation algorithm based on BP neural network model[J]. Acta Geodaetica et Cartographica Sinica, 2025, 54(6): 1021-1030.

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模型	输出平均值/（（°）/s）	标准差/（（°）/s）	Bs/（°）	Q/（（°）/s）	N/（（°）/h）	补偿时间/s
原始数据	532.8472	95.7651	25.3839	0.101	0.049
二次多项式拟合	532.8422	22.4269	14.5014	0.041	0.019	17
四次多项式拟合模型	532.8411	22.6011	12.7322	0.062	0.017	25
本文模型	532.8413	19.2864	8.0218	0.018	0.012	20

测量位置	方法	寻北值中误差/（″）	补偿时间/s
地面D01→D02	原始数据	176
	多项式拟合	170	30
	BP神经网络	160	35
井下U01→U02	原始数据	64
	多项式拟合	55	20
	BP神经网络	39	25

测量位置	方法	全站仪指向	标准差/（（°）/s）	Bs/（°）	Q/（（°）/s）	N/（（°）/）
地面D01→D02	原始数据	一位置	6.3565	0.8491	0.026	0.028
		二位置	7.0372	0.7392	0.033	0.021
		三位置	4.5453	0.5679	0.023	0.011
		四位置	4.4040	0.7304	0.023	0.009
	多项式拟合	一位置	4.2263	0.5466	0.016	0.010
		二位置	4.8526	0.5336	0.019	0.012
		三位置	4.0397	0.4655	0.015	0.007
		四位置	4.1405	0.5611	0.011	0.002
	BP神经网络	一位置	1.5580	0.3432	0.011	0.011
		二位置	1.2429	0.3184	0.009	0.004
		三位置	1.5684	0.0277	0.006	0.006
		四位置	1.5401	0.085	0.002	0.002

测量位置	方法	全站仪指向	标准差/（（°）/s）	Bs/（°）	Q/（（°）/s）	N/（（°）/）
井下U01—U02	原始数据	一位置	8.1222	0.7164	0.045	0.02
		二位置	8.3995	1.9287	0.039	0.033
		三位置	4.9398	0.7622	0.026	0.008
		四位置	4.6054	1.0988	0.024	0.012
	多项式拟合	一位置	4.2263	0.5466	0.016	0.010
		二位置	4.8526	0.5336	0.033	0.021
		三位置	4.0397	0.4655	0.023	0.011
		四位置	4.1405	0.5611	0.023	0.009
	BP神经网络	一位置	1.0479	0.2122	0.006	0.007
		二位置	1.6776	0.3021	0.004	0.004
		三位置	1.4497	0.0764	0.010	0.002
		四位置	1.3682	0.192	0.003	0.001