Driver trust in in-vehicle navigation systems may be an important factor influencing use of such automation. This research investigated the trust effect of in-vehicle navigation aiding performance that degraded over time and assessed differences in trust among automated versus human aids in a simulated driving task. Twenty participants drove through a suburb area following traffic signs and dir...

The third and fourth generation personal communication systems (PCS) are going to be based on spread spectrum techniques. This article intends to show, that the signal structures used by these systems are very similar to the ones used by GPS and proposed European satellite navigation systems and can be used for the purpose of user localization. Various methods for determining the user position ...

Tim Murphy is Technical Fellow with Boeing Commercial Airplanes where he is a member of the Electronic Systems organization. Tim has 25 years of experience in radio navigation communications and surveillance systems for civil aviation. The current focus of his work is avionics for new airplane product development, and next generation CNS technologies to support Air Traffic Management including ...

In the next few years, surveyors using high productivity, real-time kinematic (RTK) positioning and indeed all other precision positioning users will be faced with a barrage of new global navigation satellite system (GNSS) signals from GPS, GLONASS, GALILEO and possibly COMPASS/Beidou2 as well as Satellite Based Augmentation Systems (SBAS) signals and Regional Navigation Satellite Systems (RNSS...

Abstract Based on the landing environment of airport aircraft and cleaning requirements a large number navigation aids, this paper proposes scheme intelligent aids with mobile robots delivery vehicle. The efficiency robot can be effectively improved by optimizing mode moving path using feature point according to layout aids. Full automation light has been achieved, which saves lot manpower reso...

Satellite-based navigation requires precise knowledge of the structure of the transmitted signals. For GPS, accurate knowledge of the shape of the ranging codes is required to ensure no biases are introduced into the position solution. It is generally presumed that all GPS-like satellite signals were virtually identical, however new research has shown that there may be significant variations be...

The carrier-phase (CP) technique based on the Global Navigation Satellite System (GNSS) has proved to be a useful spatial tool for remote and precise time transfer. In order to improve the robustness and stability of the time transfer solution for a time link, a new CP approach based on a combination of GPS, BeiDou (BDS), and Galileo satellite systems is proposed in this study. The mathematical...

Considering the influence of the ionosphere, troposphere, and other systematic errors on double-differenced ambiguity resolution (AR), we present an optimal triple-frequency code-phase combination determination method driven by both the model and the real data. The new method makes full use of triple-frequency code measurements (especially the low-noise of the code on the B3 signal) to minimize...

This paper illustrates a Cultural Heritage Space Identification System, named CUSPIS, and his three main applications: the Cultural Asset Management (CAM), the Cultural Asset Fruition (CAF) and the Cultural Asset Geo-Time Authentication (GTA). CUSPIS project aims to introduce in Cultural Heritage sector the positioning and navigation satellite technology provided by EGNOS and GALILEO system, cr...

In this contribution we study the strength of the single-receiver, single-channel GNSS model for instantaneously resolving integer cycle-slips. This will be done for multi-frequency GPS, Galileo and BeiDou, thereby focusing on the challenging case that the slip is due to a simultaneous loss of lock on all frequencies. The analytical analysis presented is supported by means of numerical results.