TARGET DETECTION DEVICE, TARGET DETECTION SYSTEM, TARGET DETECTION METHOD, AND TARGET DETECTION PROGRAM

• Main Authors: AKAMINE YUSUKE, ARAI TOMOHIRO
• Format: Patent
• Language: English; Japanese
• Published: 12.10.2023
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

To provide a target detection device and the like that can restrict an update period of target detection from being lengthened in duration, while achieving both maximum detection speed and distance resolution.SOLUTION: A processor of a target detection device 100 executes acquisition of basic observation data that is observation data of a target in accordance with an actual send-receive result of a basic signal being an electromagnetic wave signal containing multiple chirp signals in which a frequency changes temporally. The processor executes acquisition of division observation data that is observation data of a target in accordance with a send-receive result assumed for a division signal which can be generated by dividing the basic signal and in which send time and a frequency band width for one chirp signal is smaller than in the basic signal. The processor executes determination of a detection result of a target, on the basis of at least one out of the basic observation data and the division observation data.SELECTED DRAWING: Figure 3 【課題】最大検知速度と距離分解能を両立しつつ、物標検出の更新周期の長大化を抑制可能な物標検知装置等を提供する。【解決手段】物標検出装置１００のプロセッサは、周波数が時間的に変化する複数のチャープ信号を含む電磁波信号である基本信号の実際の送受信結果に応じた物標の観測データである基本観測データを取得することを実行するように構成される。プロセッサは、基本信号を分割することで生成可能な、１つのチャープ信号あたりの送信時間及び周波数帯域幅が基本信号よりも小さい分割信号について想定される送受信結果に応じた物標の観測データである分割観測データを取得することを実行するように構成される。プロセッサは、基本観測データ及び分割観測データの少なくとも一方に基づいて、物標の検出結果を確定することを実行するように構成される。【選択図】図３