BER measurements in the evaluation of operation correctness of VSAT modem traffic interfaces

Abstract

This paper presents using bit error rate (BER) measurements to evaluate operation correctness of traffic (inputoutput) interfaces in modem of very small aperture terminal (VSAT). Such functional tests are carried out, for example, when purchasing communication equipment for armed forces. Generally, available standards do not describe measurement procedures in this area. In this case, accredited laboratories should develop dedicated assessment methodologies. In this paper, we show the methodology for the VSAT modems, which is based on the BER measurements.

The User-Preferred Optimal Flight Parameters in an Active Navigational System in a Multi-Alternative Situation

“…It is considered a certain kind of a hybrid combination of the Gibbs-Jaynes principle [17][18][19] with the classical theory of calculus of variations embodied in monograph [1], implemented in works [21][22][23][24][25][26][27], and proposed to application for aircraft control systems in aspects reflected in [2][3][4][5][6][7][8][9][10][11][12][13][14][15].…”

“…Navigation itself is a good field of the subjective analysis of the active systems control [1] application. In the variety of scientific papers and conferences reports it is covered in the vast majority of aspects, such as: trajectory planning and development [9], drone-based system for localization of people inside buildings [10], modern traffic interfaces [11], onboard radar disposition [12] and its signals identification using a neural network and pattern recognition methods [13], unmanned aerial vehicle optimal path planning [14] and road surface hazard warning system for vehicle drivers [15]. In this sense, the proposed hereinafter approach is also very close to those issues in the scientific problematic.…”