Abstract
OFDM (Orthogonal Frequency Division Multiplexing) is used for DTTB (Digital Terrestrial Television Broadcasting). It is not affected by multipath easily, so SFN (Single Frequency Network) is possible. However, it is affected in worse reception environment. Therefore, estimating the cause of degradation is useful for improvement of reception condition. In this paper, we propose a new estimation method in regard to horizontally and perpendicular direction. We describe measurement results of field experiments with proposed method.
