Results 1 to 10 of about 493 (197)

Revitalizing Astronomical Azimuth Determination: Integrating Modern Computing with Traditional Techniques [PDF]

open access: yesSensors
It is not widely recognized today that astronomical methods for azimuth determination continue to rank among the most accurate techniques for establishing orientation.
Luigi Barazzetti
doaj   +4 more sources

Development of a method for measuring the astronomical azimuth using an electronic total station [PDF]

open access: yesE3S Web of Conferences, 2021
In this article, the method of measuring the astronomical azimuth using an electronic total station, which is not intended for performing astronomical work, is considered.
Khanzadyan M.A., Mazurkevich A.V.
doaj   +2 more sources

Measurement and Correction of Pointing Error Caused by Radio Telescope Alidade Deformation based on Biaxial Inclination Sensor [PDF]

open access: yesMicromachines, 2023
One of the key reasons for the deterioration of antenna pointing accuracy for radio telescopes is the deformation and tilt of antenna alidades, which primarily result from track unevenness and thermal gradients.
Qian Xu, Fei Xue, Hui Wang, Letian Yi
doaj   +2 more sources

Multi-Stage Coordinated Azimuth Control for High-Precision Balloon-Borne Astronomical Platforms

open access: yesAerospace
This study investigates multi-level coupled dynamic issues in near-space balloon-borne astronomical observation platforms subjected to multi-source disturbances, proposing an integrated azimuth pointing control scheme combining unified modeling with ...
Yulang Cui   +4 more
doaj   +2 more sources

Semiautomatic sun shots with the WIDIF DIflux [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2017
The determination of magnetic declination angle entails finding two directions: geographic north and magnetic north. This paper deals with the former.
J. L. Rasson, O. Hendrickx, J.-L. Marin
doaj   +1 more source

New knowledge in determining the astronomical orientation of Incas object in Ollantaytambo, Peru [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
This paper deals about astronomical orientation of Incas objects in Ollantaytambo, which is located about 35 km southeast from Machu Picchu, about 40 km northwest from Cusco, and lies in the Urubamba valley. Everybody writing about Ollantaytambo, shoud
K. Hanzalová   +2 more
doaj   +1 more source

Modeling Horizontal Single Axis Solar Tracker Upon Sun-Earth Geometric Relationships

open access: yesTikrit Journal of Engineering Sciences, 2022
Many investments and commitments have recently been set to use renewable energy source, overcome energy crisis and align with climate target. Solar power development and deployment make investment in power generation sustainability.
Gzing Adil Mohammed   +1 more
doaj   +1 more source

Determination of astronomical orientation of archaeological sites on the hour angle of the Sun on the example of petroglyph spiral (Mountain Altai) [PDF]

open access: yesArchaeoastronomy and Ancient Technologies, 2016
The required accuracy of the determination of astronomical orientations of archaeological sites, in accordance with a resolution of the unaided human eye (1-2 minutes in degree measure) is substantiated in this article.
Gienko E.G.
doaj   +1 more source

Dual Axis Solar Tracker Using Astronomic Method Based Smart Relay

open access: yesJAREE (Journal on Advanced Research in Electrical Engineering), 2021
Solar energy is a renewable energy. Solar energy can be utilized using solar panels. The use of solar panels mostly uses static or silent methods. The static method on solar panels cannot produce optimal electrical energy.
Yuli Prasetyo   +2 more
doaj   +1 more source

Marks of heliacal rising of Sirius on the sundial of the Bronze Age [PDF]

open access: yesArchaeoastronomy and Ancient Technologies, 2015
The article presents the results of multidisciplinary study carried out with the help of archaeological and astronomical methods. The aim of the study was to analyze and interpret the signs - elements of the composition, incised on the outer side surface
Vodolazhskaya, L.N.   +2 more
doaj   +1 more source

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