I am not afraid of the GPS jammer, as long as there are ambient signals of opportunity
(SOPs) to exploit in the environment. In environments where GPS signals are challenged …

A framework that could achieve submeter-level-accurate horizontal navigation with carrier
phase differential measurements from cellular signals is developed. This framework, termed …

This paper shows the first results of differential Doppler positioning with unknown low Earth
orbit (LEO) Star-link satellite signals. To this end, a receiver capable of acquiring and …

A receiver architecture for cognitive sensing and navigation with orthogonal frequency
division multiplexing (OFDM)-based systems is proposed. The proposed receiver enables …

Machine learning (ML) frameworks are investigated for use in simultaneous tracking and
navigation (STAN) with low Earth orbit (LEO) satellites. STAN is a navigation paradigm that …

This letter presents the first user equipment (UE)-based 5G navigation framework that
exploits the “on-demand” 5G downlink signals. In this framework, the entire system …

Opportunistic navigation with cellular signals is studied and demonstrated on a high-altitude
aircraft. An extensive campaign was conducted by the Autonomous Systems Perception …

An interacting multiple-model (IMM) estimator is developed to adaptively estimate the
process noise covariance of low Earth orbit (LEO) satellite clocks for improved positioning …

Dedicated and aerial fifth generation (5G) networks, here called 5G overlay networks, are
envisaged to enhance existing positioning services, when combined with global navigation …

DOA (Direction of Arrival), as an important observation parameter for accurately locating the
Signals of Opportunity (SOP), is vital for navigation in GNSS-challenged environments and …