Title :
Evaluation of signal variation in land mobile satellite communications
Author :
Tanaka, K. ; Ikegami, T. ; Ohmori, S.
Author_Institution :
Kashima Space Res. Center, Kashima, Japan
Abstract :
Amplitude and phase variations of signals transmitted to and from a satellite are investigated by experimental and theoretical analyses. The investigation is based on a typical model of a land vehicle passing near a power pole. In land mobile satellite communications, signal amplitude variation by scattering caused by obstacles such as power poles is found to be significant.<>
Keywords :
electromagnetic wave scattering; mobile radio systems; phase measurement; poles and towers; radiofrequency interference; radiowave propagation; satellite relay systems; EM wave scattering; RFI; amplitude variations; land mobile satellite communications; land vehicle; model; phase variations; power pole; radiowave propagation; signal variation; Artificial satellites; Concrete; Land vehicles; Microstrip antennas; Polarization; Receiving antennas; Satellite broadcasting; Satellite communication; Scattering; Signal analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/APS.1990.115482
