[1] Wang X K, Gao Y P. Universal time calculation method based on large-scale fiber optic gyroscopes[J]. Acta Optica Sinica, 39, 0920001(2019).

[2] Li X, Wang L X, Shen Q. Prediction of the random error of a laser gyroscope using the modified GM (1,1) model[J]. Acta Optica Sinica, 40, 1204001(2020).

[3] Chen D Y, Yang Y H, Wang Z L et al. Experimental investigation on nonlinearity of spin-exchange relaxation-free atomic spin gyroscope[J]. Acta Optica Sinica, 39, 0806004(2019).

[4] Chen C G, Liu W C[J]. Research on initial alignment of strapdown inertial navigation system of shipborne weapon on moving base Digital Technology & Application, 2020, 219-222.

[5] Sun J, Zou J, Hu T. Indirect alignment of MEMS inertial navigation system based on multi forgetting factors adaptive Kalman filter de-noising[J]. Application of Electronic Technique, 44, 45-47, 51(2018).

[6] Chen G W, Cheng J H, Li S Y et al. Research on indirect coarse alignment method of MEMS based on improved wavelet denoising[J]. Journal of Dalian University of Technology, 59, 323-330(2019).

[7] Li S X, Wang Y F, Yang Y et al. Velocity matching alignment of low cost INS/GPS integrated system[J]. Journal of Chinese Inertial Technology, 13, 35-37(2005).

[8] Yang B, Shan B, Wang Y G et al. MIMU/GPS precise integrated navigation method aided by heading information[J]. Journal of Chinese Inertial Technology, 26, 643-648(2018).

[9] Zhang F J, Shan B, Yang B et al. Application of cascaded Kalman filter in initial alignment[J]. Computer Measurement & Control, 26, 287-291(2018).

[10] Zhang F J, Shan B, Wang Y G et al. Initial alignment method of MIMU aided by GPS under static condition[J]. Aerospace Control, 36, 58-63(2018).

[11] Wu Y P, Wang J H, Yang Z. High precision GPS system based on double antennas and its application in unmanned surface vessel[J]. Computer Measurement & Control, 23, 1330-1332, 1358(2015).

[12] Yang Z, Wang J H, Wu Y P. Application of Kalman filter in dual antenna GPS positioning system of unmanned surface vessel[J]. Computer Measurement & Control, 22, 2922-2925(2014).

[13] Dai T G, Gong S S, Wei M et al. Research on GNSS dual antennas attitude determination and point calibration method[J]. GNSS World of China, 44, 110-115(2019).

[14] Wang H L, Su Z, Liu N et al. Research on dual-antenna GNSS-assisted mins navigation method[J]. Journal of System Simulation, 31, 2434-2441(2019).

[15] Zhu F L. Research on high precision Beidou dynamic four antenna orientation technology[D]. Beijing: Beijing Institute of Technology(2016).

[16] Donoho D L. De-noising by soft-thresholding[J]. IEEE Transactions on Information Theory, 41, 613-627(1995).

[17] Donoho D L, Johnstone I M. Adapting to unknown smoothness via wavelet shrinkage[J]. Journal of the American Statistical Association, 90, 1200-1224(1995).

[18] Coifman R R, Donoho D L. Translation-invariant de-noising[M]. New York: Springer, 125-150(1995).

[19] Zhang X P, Desai M D. Adaptive denoising based on SURE risk[J]. IEEE Signal Processing Letters, 5, 265-267(1998).

[20] Stein C M. Estimation of the mean of a multivariate normal distribution[J]. The Annals of Statistics, 9, 1135-1151(1981).

[21] Pan Q, Dai G Z, Zhang H C et al. A threshold selection method for hard-threshold filter algorithm[J]. Acta Electronica Sinica, 26, 3-5(1998).

[22] Qu T S, Dai Y S, Wang S X. Adaptive wavelet thresholding denoising method based on SURE estimation[J]. Acta Electronica Sinica, 30, 266-268(2002).

[23] Ye Y Y, Zhang Y Z, Zou X Y et al[J]. Improvement of Euler angle attitude algorithm Equipment Manufacturing Technology, 2018, 104-105, 134.

[24] Wang W, Hu G G, Gao S S et al. Maximum likelihood principle based adaptive unscented Kalman filter for INS/GNSS integration[J]. Journal of Chinese Inertial Technology, 25, 656-663(2017).