FMCW Automotive Radars Using Only In-Phase Channel

This paper describes a compact radar for automotive applications. A Frequency Modulated Continuous Wave (FMCW) radar is employed here with only in-phase channel. Since this radar cannot detect a sign of beat frequency of receiving signals, we have the ambiguity about the range and the velocity of targets. In this paper, we propose a novel FMCW automotive radar to suppress this ambiguity.