A study on positioning system by means of ISDB-T radio waves

Abstract

In case of the ISDB-T, SFN (Single Frequency Network) is introduced for efficient frequency use. In SFN environment, relay stations are keeping high precision and stability of carrier wave frequency so as not to interfere each broadcasting waves. And, we proposed a new phase fluctuation measurement method which can measure the frequency of each relay station's wave even in SFN environment by using the delay profiles. In this paper, we describe measurement results of the relative positioning measured by the proposed method.