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VP4TAN: Waller field, Trinidad, B.W.I.
(Unknown, 2011-03-09)
This is a postcard is a QSL card which was sent by amateur radio operators to confirm two way radio station contact. This particular card was sent from Victor L. Felix and addressed to George Miller of Cleveland, Ohio. The ...
Acousto-optical radio-wave spectrometer with parallel multi-channel data processing for astrophysical investigations
(Instituto Nacional de Astrofísica, Óptica y Electrónica, 2016)
Distance to Object Estimation Based on Software Defined Radio USRP using Python
(Universidad Nacional Tecnológica de Lima Sur, 2020)
The use of a Software Defined Radio System SDR is widely used in several critical applications such as wireless communications, airborne, satellite, radar, etc. SDR through Universal Peripheral Radio Software Technology ...
A gravity waves study close to the Andes mountains in Patagonia and Antarctica with GPS radio occultation observations
(Copernicus Publications, 2010-03)
We first study the seasonal and geographical behavior of gravity wave activity in the lower stratosphere over the southernmost Andes mountains and their prolongation in the Antarctic Peninsula by global positioning system ...
An alternative method based on RF to classify porous ceramic materials
(Institute of Electrical and Electronics Engineers Inc., 2018)
Several properties of ceramic materials such as mechanical strength, acoustical characteristics, etc. are related to their degree of porosity. Traditional methods to estimate the porosity of materials used in construction ...
The Accuracy of Radio Direction Finding in the Extremely Low Frequency Range
(American Geophysical Union, 2017-10)
In this work, we study the accuracy of direction finding in the extremely low frequency (ELF) range using a newly installed broadband receiver equipped with two active magnetic antennas. The main natural source of ELF radio ...
Introdução aos sistemas aviônicos de rádio navegação
(Universidade Estadual Paulista (Unesp), 2015-09-04)
This work is focused on the subject of air radio navigation systems embedded on aircraft and in the ground stations. Initially is presented a historical context and motivation of the chosen theme. In the following chapters ...