Mobile test systems intended for cellular phone coverage measurements suffer from uncertainties, which are caused by the unpredictable radiation pattern of the measuring antenna installation. Not only do adjacent structures and very common multiple antennas disturb the characteristics, but also in the case of an ideal position does the vertical lobing introduce errors exceeding 10 dB. The problems are likely to be worse in dense urban areas, where multipath from surrounding buildings is the dominating propagation mode.
Effects of test vehicle patterns on cellular coverage measurements
IEEE Aerospace and Electronic Systems Magazine ; 12 , 3 ; 9-11
01.03.1997
351670 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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