Ghost peak suppression methods for small target recognition in automotive millimeter wave FMCW MIMO radar utilizing thinned antenna arrays

カテゴリ: 研究会(論文単位)

論文No: CMN25027

グループ名: 【C】電子・情報・システム部門 通信研究会

発行日: 2025/02/28

タイトル(英語): Ghost peak suppression methods for small target recognition in automotive millimeter wave FMCW MIMO radar utilizing thinned antenna arrays

著者名: Tsubaki Keita(Ibaraki University),Sun Ran(Ibaraki University),Takeda Shigeki(Ibaraki University)

著者名(英語): Keita Tsubaki (Ibaraki University),Ran Sun(Ibaraki University),Shigeki Takeda(Ibaraki University)

キーワード: FMCW|radar| millimeter-wave |Ghost peak suppression|thinned antenna arrays|FMCW|radar| millimeter-wave |Ghost peak suppression|thinned antenna arrays

要約(日本語): Automotive millimeter wave radars for advanced driver assistance systems (ADAS) and autonomous driving systems are needed to achieve accurate target imaging functionalities on roads. Small targets, including pedestrians, cycles, animals, and on-road debri

要約(英語): Automotive millimeter wave radars for advanced driver assistance systems (ADAS) and autonomous driving systems are needed to achieve accurate target imaging functionalities on roads. Small targets, including pedestrians, cycles, animals, and on-road debris, are significantly vulnerable and critical things on the road. Automotive millimeter wave radars must accurately identify these vulnerable and dangerous targets to avoid serious traffic accidents. Although fast chirp modulation (FCS) frequency modulated continuous wave (FMCW) multiple input multiple outputs (MIMO) radars (FCM-FMCW-MIMO radars) can resolve multiple targets with enough different ranges, velocities, and angles with large target sizes. However, current automotive millimeter wave radars cannot discriminate small targets on spatial spectra that estimate target angles from inherent sidelobes. These sidelobes are referred to as ghost peaks. This paper proposes a method to discriminate small targets from ghost peaks by introducing thinned antenna arrays and large targets canceling on antenna element space. Experimental results using a millimeter wave radar validate the proposed method.

本誌: 2025年3月3日-2025年3月4日通信研究会

本誌掲載ページ: 31-34 p

原稿種別: 英語

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