Abstract

Extended Kalman Filter (EKF) can not only be used for tracking L1 signal under high dynamic, but also combine with semi-codeless techniques to track high dynamic L2 signal. And EKF can hold stability lock with semi-codeless in the ionospheric scintillation. The method of maximum a posteriori (MAP) estimation is used to estimate the unknown W-bit to overcome anti-spoofing (AS). EKF based semi-codeless techniques are used for off-line software receiver in dual-frequency ionospheric scintillation. The algorithm estimates the carrier phase, Doppler shift, rate of change of Doppler shift, code phase in real-time. The results of simulation show that the algorithm can track dual-frequency GPS signals in the dynamic acceleration as high as 100g.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.