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166.096  Articles
1 of 16.611 pages  |  10  records  |  more records»
Context. This research aims to improve the satellite navigation systems accuracy due to the correction of satellite signals multipathpropagation errors. The multipath effect errors reducing problem on the navigation solutions accuracy is one of the most p... see more

Abstract: Motions in vehicular ad hoc networks (VANETs) cause Doppler Frequency Shifts (DFSs) which are described by frequency dispersions in the received signals. Although the VANETs channels are perturbed by noise sources such as multipath delay sp... see more

The perspective of extending the European Geostationary Navigation Overlay Service outside the European Civil Aviation Conference area is of great interest for Europe. Ukraine is among the first candidates for installation of the Ranging and Integrity Mon... see more

Context. Traditionally a large number of pilot carriers are utilized to acquire channel state information in OFDM based systems.A larger number of pilot carriers gives better channel state estimation but leads to lower spectrum efficiency of the system.Ob... see more

In this paper, the potentials of using Global Navigation Satellite System (GNSS) techniques in the complex calibration procedure of the tracking sensors for missile test range applications have been presented. The frequently used tracking sensors in test ... see more

With easy-to-be-disposed architecture and premium navigation performances, polar-coordinate navigationsystem (PCNS) is still widely utilized by modern military navigation systems. Unfortunately, PCNS has very poor electronic counter-counter measures (ECCM... see more

Soil moisture (SM) is a highly relevant variable for agriculture, the emergence of floods and a key variable in the global energy and water cycle. In the last years, several satellite missions have been launched especially to derive large-scale products o... see more

The high interest of mountain climbers in Indonesia also increases the risk of accidents that can occur in climbing. To reduce this risk, we need a tool system that can assist local officers in monitoring the location and condition of climbers. However, d... see more

The Ocean exhibits phenomenon of changing acoustic signal transmission due to its non-stationary nature. Water columns in between transmitter and receiver are not fixed at any point of time. Thus, designing of a wireless communication systems for underwat... see more

1 of 16.611 pages  |  10  records  |  more records»