The GPS orbit precision of the IGS ultra-rapid predicted (IGU-P) products has been
remarkably improved since 2007. However, the satellite clock offsets of the IGU-P products …

The satellite clocks used in the BeiDou-2 satellite navigation System (BDS) are Chinese self-
developed Rb atomic clocks, and their performances and stabilities are worse than GPS and …

Abstract The integration of Global Positioning System (GPS) with Inertial Navigation System
(INS) has been very intensively developed and widely applied in multiple areas. To further …

In this paper, a robust unscented Kalman filter (UKF) based on the generalized maximum
likelihood estimation (M-estimation) is proposed to improve the robustness of the integrated …

In order to estimate the satellite clock offset in a real-time mode, a new algorithm of
adaptively robust Kalman filter with classified adaptive factors for clock offset estimation is …

At present, GNSS (Global Navigation Satellite System) positioning technology is widely used
for outdoor positioning services because of its high-precision positioning characteristics …

Micro-electromechanical systems and inertial measurement units (MEMS-IMUs) show great
advantages in terms of price and size. Nevertheless, due to limitations of technology, their …

When certain constraints in the kinematic state parameters of a multi-sensor navigation
system exist, they should be taken into account for the improvement of the positioning …

This paper presents a new robust adaptive filtering method for SINS/SAR (Strap-down
Inertial Navigation System/Synthetic Aperture Radar) integrated navigation system. This …

Aiming at the GNSS receiver vulnerability in challenging urban environments and low power
consumption of integrated navigation systems, an improved robust adaptive Kalman filter …