[4] [4] TOLLES W E.Compensation of aircraft magnetic field：United States2692970［P］.1954-10-26.

[7] [7] FOSTER C C，ELKAIM G H.Extension of a non-linear，two-step calibration methodology to include non-orthogonal sensor axes［J］.IEEE Transactions on Aerospace Electronic Systems，2008，44(3):1070-1087.

[8] [8] GEBRE E D，ELKAIM G H，POWELL J Det al.Calibration of strapdown magnetometers in magnetic field domain［J］.Journal of Aerospace Engineering，2006，19(2):87-102.

[9] [9] GEBRE E D.Magnetometers autocalibration leveraging measurement locus constraints［J］.Journal of Aircraft， 2007，44(4):1361-1368.

[13] [13] BICKEL S H.Small signal compensation of magnetic fields resulting from aircraft maneuvers［J］.IEEE Tran-sactions on Aerospace and Electronic Systems，1979，15(4):518-525.

[19] [19] VALERIE R，MUHAMMAD H A，GERARD L.Complete triaxis magnetometer calibration in the magnetic domain［J］.Journal of sensors，2010.doi:10.1155/2010/967245.

[20] [20] RHODE S，USEVICH K，MARKOVSKY I，et al.A recursive restricted total least-squares algorithm［J］.IEEE Transactions on Signal Processing，2014，62(21):5652-5662.

[22] [22] CRASSIDIS J L，LAI K，HARMAN R R. Real-time attitude independent three-axis magnetometer calibration［J］.Journal of Guidance，Control and Dynamics，2005，28(1):115-120.

[25] [25] WU Z T，WU Y X，HU X P，et al.Calibration of three-axis strapdown magnetometers using particle swarm optimization algorithm［J］.IEEE Transactions on Instrumentation and Measurement，2013，62(2):281-292.

[28] [28] SIMA D M,VAN HUFFEL S.Level choice in truncated total least squares［J］.Computational Statistics & Data Analysis，2007，52(2):1103-1118.

[29] [29] FIERRO R D，GOLUB G H，HANSEN P C，et al.Regularization by truncated total least squares［J］.SIAM Journal on Scientific Computing，1997，18(4):1223-1241.