RADAR DEVICE

To provide a radar device capable of performing phase compensation between receiving circuits, and capable of suppressing degradation in angular resolution.SOLUTION: A control unit of a radar device executes switching between an overlapping mode in which a center frequency of a transmission signal i...

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Bibliographic Details
Main Author ARAI TOMOHIRO
Format Patent
LanguageEnglish
Japanese
Published 27.03.2024
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Summary:To provide a radar device capable of performing phase compensation between receiving circuits, and capable of suppressing degradation in angular resolution.SOLUTION: A control unit of a radar device executes switching between an overlapping mode in which a center frequency of a transmission signal is changed to allow virtual duplication with regard to a position of a receiving antenna connected to a different receiving circuit, and a non-overlapping mode. In the overlapping mode, virtual duplication of a position of a receiving antenna connected to a different receiving circuit is allowed. In the non-overlapping mode, virtual duplication of an antenna position is prohibited. In the overlapping mode, the control unit executes implementation of phase compensation of both receiving circuits according to a phase difference of both reception signals received by a receiving antenna with a duplicated position.SELECTED DRAWING: Figure 7 【課題】受信回路間の位相補償が可能であり、且つ角度分解能の低下を抑制可能なレーダ装置を提供する。【解決手段】レーダ装置の制御ユニットは、送信信号の中心周波数を変更することで、異なる受信回路に接続された受信アンテナの位置について仮想的な重複を許容するオーバーラップモードと、非オーバーラップモードと、を切り替えることを実行するように構成される。オーバーラップモードは、異なる受信回路に接続された受信アンテナの位置の仮想的な重複を許容する。非オーバーラップモードは、アンテナ位置の仮想的な重複を禁止する。制御ユニットは、オーバーラップモードにおいて、位置が重複した受信アンテナにて受信された受信信号同士の位相差に応じた受信回路同士の位相補償を行うことを実行するように構成される。【選択図】図7
Bibliography:Application Number: JP20220146479