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The Study of DoA Estimation in Frequency Domain in Automotive Radar System
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 Title & Authors
The Study of DoA Estimation in Frequency Domain in Automotive Radar System
Choi, Jung-hwan; Choi, Ji-won; Kim, Seong-cheol;
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Convenience and safety are the key words for the automotive driving and various sensor technologies have been studied for enhanced perception of driving environments. In frequency modulated continuous wave (FMCW) radar systems, single antenna is enough for range and velocity detection of multiple targets. Multiple array antenna is needed for estimating direction of arrival(DoA). Using DoA estimation algorithm in time domain as in the conventional systems, it is difficult to distinguish vehicles lie in the same angle. In order to facilitate the enhanced angle estimation, DoA estimation algorithm is applied in frequency domain. In this paper, the method for applying multiple signal classification(MUSIC) algorithm in frequency domain is suggested and the performance is analyzed.
DoA estimation;MUSIC;automotive radar;frequency domain;high resolution;
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