Transport | |
Modelling of ‘satellite-to-aircraft’ link for self-separation | |
Yurii Barabanov1  Volodymir Kharchenko1  Andrii Grekhov1  | |
[1] Dept of Air Navigation Systems, National Aviation University, Kosmonavta Komarova ave 1, 03680 Kyiv, Ukraine | |
关键词: free-flight; self-separation; ADS-B; BER; communication channel; aircraft; satellite; convolutional encoder; BPSK; free space loss; phase/frequency offset; memory-less nonlinearity; phase noise; Viterbi decoder; amplifier backoff level; noise temperature; antenna diameter; | |
DOI : 10.3846/16484142.2013.864699 | |
学科分类:航空航天科学 | |
来源: Vilnius Gedinimas Technical University | |
【 摘 要 】
The aim of this paper is to design the original model of communication channel ‘Satellite-to-Aircraft’ for self-separation with error-control coding using MATLAB Simulink software. Studying the signal transmission through a communication channel without coding and with convolutional coding the following parameters were changed: losses in a free space from 0 dB to 225 dB; noise temperature of an aircraft receiver 20 K and 290 K; simultaneous changing of antennas diameter; phase offsets from 0° to 20°; nonlinearity of satellite high power amplifier; satellite phase noise; and a data bit rate. BER is vanishing for free space path losses changing from 0 dB to 221 dB at the use of convolutional coding and a noise temperature 20 K, for diameters of all antennas of more than 1.2 m, and at phase shifts up to 4°. The signal constellation shows a presence of strong distortions during signal transmission. The proposed model can be used as a basic model for investigation of communication between two unmanned aircraft systems.
【 授权许可】
CC BY
【 预 览 】
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RO201904026144025ZK.pdf | 872KB | download |