D. Titterton, J. Weston, Strapdown inertial navigation technology 2nd ed., IET, London, United Kingdown, 2004.
 S. Sukkarieh, E. Nebot, H. Durrant - Whyte, Achieving integrity in an INS/GPS navigation loop for autonomous land vehicle applications, in: Robotics and Automation, 1998. Proceedings. 1998 IEEE International Conference, IEEE, Leuven, Belgium, 1998, pp. 3437-3442.
 J. Farrell, T. Givargis, M.J. Barth, Real - time differential carrier phase GPS - aided INS, IEEE Transactions on Control Systems Technology, 8(4) (2000) 709-721.
 A. El - Rabbany, Introduction to GPS: The Global Positioning System, Artech House, London, 2002.
 H. Nourmohammadi, J. Keighobadi, Design and experimental evaluation of indirect centralized and direct decentralized integration scheme for low - cost INS/GNSS system, GPS Solutions, 22 (2018) 1-18.
 J. Wendel, O. Meister, C. Schlaile, G. Trommer, An integrated GPS/MEMS - IMU navigation system for an autonomous helicopter, Aerospace Science and Technology, 10(6) (2006) 527-533.
 H. Nourmohammadi, J. Keighobadi, Decentralized INS/GNSS system with MEMS - grade inertial sensors using QR - factorized CKF, IEEE Sensors Journal, 17(11) (2017) 3278-3287.
 H. Nourmohammadi, J. Keighobadi, Fuzzy adaptive integration scheme for low - cost SINS/GPS navigation system, Mechanical Systems and Signal Processing, 99(2018) (2018) 434-449.
 S. Godha, M. Cannon, GPS/MEMS INS integrated system for navigation in urban areas, GPS Solutions, 11(3) (2007) 193-203.
 N. Musavi, J. Keighobadi, Adaptive fuzzy neuro - observer applied to low cost INS/GPS, Applied Soft Computing, 29 (2015) 82-94.
 S. Rafatnia, H. Nourmohammadi, J. Keighobadi, M. Badamchizadeh, In - move aligned SINS/GNSS system using recurrent wavelet neural network (RWNN) - based integration scheme, Mechatronics, 54 (2018) 155-165.
 A. Noureldin, A. El - Shafie, M. Bayoumi, GPS/INS integration utilizing dynamic neural networks for vehicular navigation, Information Fusion, 12(1) (2011) 48-57.
 D. Bhatt, P. Aggarwal, V. Devabhaktuni, P. Bhattacharya, A novel hybrid fusion algorithm to bridge the period of GPS outages using low - cost INS. Expert Systems with Applications, 41(5) (2014) .3712 - 6612
 J. Keighobadi, H. Nourmohamadi, S. Rafatania, Design and Implementation of GA Filter Algorithm for Baro - inertial Altitude Error Compensation, in: 18th IIE International Conference on Latest Trends in Engineering and Technology (ICLTET - 2018), International Institute of Engineers (IIE) ISTANBUL - TURKEY, 2018.
 J. Keighobadi, S. Rafatnia, H. Nourmohammadi, M. Arbabmir, Design and implementation of altitude estimation algorithm in the integrated barometric - inertial altimeter using model predictive control, Journal of Mechanical Engineering - University of Tabriz, 47(2) (2017) 233-238, (In Persian).
 H. Nourmohammadi, J. Keighobadi, Integration Scheme for SINS/GPS System Based on Vertical Channel Decomposition and In - Motion Alignment, AUT Journal of Modeling and Simulation, 50(1) (2018) 13-22.
 J. Keighobadi, H. Vosoughi, J. Faraji, Design and implementation of a model predictive observer for AHRS, GPS Solutions, 22(1) (2018) 22-29.
 J. Stead, S. Holtznagel, AHD heights from GPS using AUSGEOID93, Australian surveyor, 39(1) (1994) 21.27
 J. Mendel, R. John, Type-2 fuzzy sets made simple, IEEE Transactions on fuzzy systems, 10(2) (2002) 117-127.
 D. Simon, Kalman filtering with state constraints: a survey of linear and nonlinear algorithms, IET Control Theory & Applications, 4(8) (2010) 1303-1318.
 S. Boyd, L. Vandenberghe, Convex optimization, Cambridge university press, Cambridge, UK, 2004.