This article provides a review on X-ray pulsar-based navigation (XNAV). The review starts
with the basic concept of XNAV, and briefly introduces the past, present and future projects …

In satellite-denied confrontation or unstructured environments, the navigation performance
of the GPS will be severely restricted or even deceived. The SINS/polarization navigation …

High-precision relative position and attitude measurement is crucial for consensus control
and collision avoidance in multi-CubeSat formation flying. However, the traditional relative …

This paper proposes a novel approach to analyze the observability of a stochastic linear or
non-linear dynamical system. Unlike the traditional observability analysis approach, our …

The celestial navigation system based on star angle (SA) is a classical autonomous
navigation method for the spacecraft, which directly provides the position information of the …

Subjected to the current observation technology, the planetary ephemerides which are used
to predict the positions of planets are not accurately known. For Jupiter exploration …

To suppress the systematic errors of the X-ray pulsar navigation system (XPNAV) based on
the phase and Doppler frequency shift, and eliminate singularity phenomena, a double …

Since X-ray pulsar navigation system (XNAV) has better anti-interference and autonomy, a
novel X-ray pulsar integrated navigation method combining celestial navigation system …

X-ray Pulsar Navigation (XPNAV) uses the Time Difference of Arrival (TDOA) of the pulsar
signal between the spacecraft and Solar System Barycentre (SSB) to determine position. In …

Onboard measurements of periodic x-ray signals from highly stable, rapidly spinning stars
called pulsars, enable determination of spacecraft position, velocity, and attitude states. Due …