Title :
Case study of intense scintillation events on the OTS path
Author :
Basili, Patrizia ; Ciotti, Piero ; Auria, Giovanni D. ; Ferrazzoli, Paolo ; Solimini, Domenico
Author_Institution :
Dept. of Electron., Rome Univ., Italy
fDate :
1/1/1990 12:00:00 AM
Abstract :
Selected events of enhanced field amplitude fluctuations recorded on the Orbital Test Satellite (OTS) path have been analyzed. The statistical properties of the beacon signals together with their correlation with the concurrent radiometric signal suggest that both scintillation and a variable attenuation mechanism act to produce the field fluctuations. Analysis of the coherence between the beacon and the radiometric signals gives an indication of the fluctuation frequency range over which each effect prevails. The comparison between scintillation data collected by a large (17 m) and a small (3 m) antenna indicates that the turbulence of the refractive index was particularly high during the course of the considered events
Keywords :
microwave links; radiowave propagation; satellite links; tropospheric electromagnetic wave propagation; OTS path; Orbital Test Satellite; beacon signals; concurrent radiometric signal; enhanced field amplitude fluctuations; intense scintillation events; microwave link; radiowave propagation; refractive index; variable attenuation mechanism; Attenuation; Fluctuations; Frequency; Mechanical factors; RF signals; Radiometry; Refractive index; Satellite broadcasting; Signal analysis; Testing;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
