On-board Experiments on L-band Multipath Fading and Its Reduction by Use of the Polarization Shaping Method

Yoshio KARASAWA  Masayuki YASUNAGA  Shinichi NOMOTO  Takayasu SHIOKAWA  

IEICE TRANSACTIONS (1976-1990)   Vol.E69   No.2   pp.124-131
Publication Date: 1986/02/25
Online ISSN: 
Print ISSN: 0000-0000
Type of Manuscript: PAPER
Category: Radio Wave and Satellite Communication

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Four sets of on-board experiments regarding the measurements of 1.5 GHz multipath fading on propagation paths with low elevation angles and evaluation of fading reduction effects using the polarization shaping method were carried out. This paper describes the outline of the experiments, results obtained, and the comparison with theoretical values of the model presented by the authors. Results indicate that fading depth hardly depends on the wave height when the wave height is higher than 1 m, and that the polarization shaping method is effective for both up-link and down-link fadings for sea conditions with a wave height of up to at least 3 m.