[1] MADGWICK S O H,HARRISON A J L,VAIDYANATHAN R.Estimation of IMU and MARG orientation using a gradient descent algorithm［C］//IEEE International Conference on Rehabilitation Robotics,2011:1-7.

[4] SUH Y S,RO Y S,KANG H J.Quaternion-based indirect Kalman filter discarding pitch and roll information contained in magnetic sensors［J］.IEEE Transactions on Instrumentation and Measurement,2012,61(6):1786-1792.

[6] SONG J W,PARK C G.Enhanced pedestrian navigation based on course angle error estimation using cascaded Kalman filters［J］.Sensors,2018,18(4):1281-1300.

[7] SABATINI A M.Quaternion-based extended Kalman filter for determining orientation by inertial and magnetic sensing［J］.IEEE Transactions on Biomedical Engineering, 2006,53(7):1346-1356.

[8] THISURA H,MUNASINGHE R.Accurate attitude estimation under high accelerations and magnetic disturbances［C］//Moratuwa Engineering Research Conference,2017:1-6.

[10] TEDALDI D,PRETTO A,MENEGATTI E.A robust and easy to implement method for IMU calibration without external equipments［C］//IEEE International Confe-rence on Robotics and Automation (ICRA),2014:1-8.