Prethodno priopćenje

Satellite Propagation Channel Analysis via Ray-Tracing Simulation

Zoran Blažević
Igor Zanchi
Ivan Marinović

Sažetak

The paper deals with a satellite propagation channel analysis via powerful methods such as ray-tracing, uniform geometrical theory of diffraction and Fourier Transform, already confirmed in various scientific literature. These procedures are easily programmable, and thus can be used as basis for analysing software of various radio channels. In order to present theirs suitability, an example of radio channel of Low-Earth Orbit satellite that emits at central frequency 1625 MHz at various elevation angles (illuminated and shadow zone) is exploited. Accordingly, the diagrams of impulse response and Doppler power spectra are shown and commented. It can be concluded that presented simulation can be successfully applied for multipath radio channel analysis, especially when fundamental channel parameters such as coherence bandwidth or coherence time are to be determined.

Ključne riječi

satellite propagation channel; ray-tracing; uniform geometrical theory of diffraction; impulse response; Doppler spectrum

Hrčak ID:

6774

URI

https://hrcak.srce.hr/6774

Datum izdavanja:

29.12.2003.

Podaci na drugim jezicima: hrvatski

Posjeta: 2.778 *