A cryogenic rotation stage with a large clear aperture for the half-wave plates in the Spider instrument [PDF]
We describe the cryogenic half-wave plate rotation mechanisms built for and used in Spider, a polarization-sensitive balloon-borne telescope array that observed the Cosmic Microwave Background at 95 GHz and 150 GHz during a stratospheric balloon flight ...
Alexandra S. Rahlin +51 more
core +3 more sources
Instantaneous Sub-meter Level Precise Point Positioning of Low-Cost Smartphones
The prevalence of inexpensive global navigation satellite system (GNSS) chips that facilitate the performance of carrier phase measurements has provided hardware that can be used as the foundation for implementing precise point positioning (PPP) of low ...
Jiale Wang +4 more
doaj +1 more source
Integral Resonant Control for vibration damping and precise tip-positioning of a single-link flexible manipulator [PDF]
Peer ...
Aphale, Sumeet Sunil +3 more
core +1 more source
Evaluating indoor positioning systems in a shopping mall : the lessons learned from the IPIN 2018 competition [PDF]
The Indoor Positioning and Indoor Navigation (IPIN) conference holds an annual competition in which indoor localization systems from different research groups worldwide are evaluated empirically.
Ali, Muhammad Usman +60 more
core +2 more sources
Enhanced Precise Point Positioning for GNSS Users
This paper summarizes the main results obtained during the development of an Enhanced Precise Point Positioning (EPPP) Global Navigation Satellite Systems multifrequency user algorithm. The main innovations include the application of precise ionospheric corrections to facilitate the resolution of undifferenced carrier phase ambiguities, ambiguity ...
Juan Zornoza, José Miguel +11 more
openaire +3 more sources
Augment BeiDou real-time precise point positioning using ECMWF data
The Chinese BeiDou Navigation Satellite System has shown potential for precise positioning with a comparable accuracy to that of the Global Positioning System (GPS) at the centimeter level for the horizontal component and the sub-centimeter level for the
Kemin Zhu +5 more
doaj +1 more source
Accuracy assessment of Precise Point Positioning with multi-constellation GNSS data under ionospheric scintillation effects [PDF]
GPS and GLONASS are currently the Global Navigation Satellite Systems (GNSS) with full 16 operational capacity. The integration of GPS, GLONASS and future GNSS constellations can 17 provide better accuracy and more reliability in geodetic positioning, in
Aquino +29 more
core +3 more sources
Kinematic Precise Point Positioning Performance-Based Cost-Effective Robot Localization System
The use of high-precision positioning systems in modern navigation applications is crucial since location data is one of the most important pieces of information in Industry 4.0, especially for robots operating outdoors.
Ashraf Farah, Mehdi Tlija
doaj +1 more source
Fast precise point positioning: a system to provide corrections for single and multi-frequency navigation [PDF]
Fast Precise Point Positioning (Fast-PPP) provides Global Navigation Satellite System corrections in real-time. Satellite orbits and clock corrections are shown to be accurate to a few centimeters and a few tenths of a nanosecond which, together with ...
Bertran Albertí, Eduardo +4 more
core +2 more sources
GPS AND GLONASS COMBINED STATIC PRECISE POINT POSITIONING (PPP) [PDF]
With the rapid development of multi-constellation Global Navigation Satellite Systems (GNSSs), satellite navigation is undergoing drastic changes. Presently, more than 70 satellites are already available and nearly 120 more satellites will be available ...
D. Pandey +3 more
doaj +1 more source

