Further results on LMSS experiment in Kyoto City

Author

Souza, K.D. ; Khan, M.H. ; Matsumoto, Y.

Author_Institution

Dept. of Electr. Eng., Lakehead Univ., Thunder Bay, Ont., Canada

Volume

29

Issue

4

fYear

1993

fDate

10/1/1993 12:00:00 AM

Firstpage

1237

Lastpage

1243

Abstract

In February of 1990, land mobile satellite experiments were conducted in Kyoto City, Japan, using the Engineering Test Satellite V (ETS-V). The received signal strength was recorded, as was the speed of the mobile as it traversed various downtown streets. The setting was that of a built-up urban area with medium and high rise buildings, electric utility poles, and trees lining the streets. These caused obstruction to the satellite line of sight (LOS). The signal level fluctuation due to diffraction of radio waves by the urban structures is analyzed. The results obtained from the measurements and theoretical calculation agree. The spatial frequencies due to diffraction are found to vary between 1.8 Hz to 5.3 Hz. It is concluded that this variation of received signal level will not adversely affect the receiver performance. Based on recorded signal strength, the performance of a digital land mobile satellite system (LMSS), under the above mentioned environment, is analyzed and the results presented

Keywords

electromagnetic wave diffraction; fading; mobile radio systems; radiowave propagation; satellite relay systems; 1.8 to 5.3 Hz; 1990; ETS-V; Engineering Test Satellite V; Kyoto City; built-up urban area; data links; diffraction of radio waves; fading; fluctuation; land mobile satellite experiments; line of sight; mobile users; noise links; spatial frequencies; stutter; success rate; Buildings; Cities and towns; Diffraction; Fluctuations; Frequency; Power industry; Satellite broadcasting; Signal analysis; Testing; Urban areas;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.259527

Filename

259527