To reliably detect an object traveling at a low speed and an object that is still and has slight movement regarding a radar signal processor for detecting a specific target positioned in a near range of a radar device mounted on a vehicle, and a radar device incorporating the radar signal processor.SOLUTION: A radar signal processor includes: means for generating a beat signal by mixing a radar signal with a transmission signal of transmission waves; a first signal processing part for performing fast Fourier transform of the beat signal to obtain frequency spectrum data and for extracting distance component data up to a target; a distance limitation part for taking out only a signal within predetermined distance as distance component data from a vehicle from among the distance component data; a buffer part for accumulating distance component data for a predetermined period; a second signal processing part for performing fast Fourier transform of distance component data accumulated in a buffer part; and target identification means for identifying presence of a vicinity target as a distribution of a Doppler component of a radar signal within a close distance.SELECTED DRAWING: Figure 1

    【課題】 この発明は、車両に搭載されたレーダ装置の近レンジ内に位置する特定の目標を検知するレーダ信号処理装置と、そのレーダ信号処理装置が組み込まれたレーダ装置とに関し、低速で移動する対象物や静止していてわずかな動きのある対象物を、確実に検出できる。【解決手段】 レーダ信号と送信波の送信信号とをミキシングしてビート信号を生成する手段と、ビート信号を高速フーリエ変換して周波数スペクトラムデータを得るとともに目標までの距離成分データを抽出する第1の信号処理部と、距離成分データのうち車両から所定の距離内における信号のみを距離成分データとして取り出す距離制限部と、距離成分データを所定期間分蓄積するバッファ部と、バッファ部に蓄積した距離成分データを高速フーリエ変換する第2の信号処理部と、近距離内におけるレーダ信号のドップラ成分の分布として近傍目標の存在を識別する目標識別手段と、を備える。【選択図】 図1


    Access

    Download


    Export, share and cite



    Title :

    RADAR SIGNAL PROCESSOR AND RADAR DEVICE


    Additional title:

    レーダ信号処理装置およびレーダ装置


    Contributors:

    Publication date :

    2019-11-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01S RADIO DIRECTION-FINDING , Funkpeilung / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



    RADAR SIGNAL PROCESSOR AND RADAR DEVICE

    TOKIEDA YUKINOBU / TSUDA KAZUTOSHI | European Patent Office | 2016

    Free access

    RADAR SIGNAL PROCESSOR

    KIRITA MITSURU / SAKAMAKI HIROSHI | European Patent Office | 2019

    Free access

    RADAR SIGNAL PROCESSOR AND RADAR SIGNAL PROCESSING PROGRAM

    TSUDA KAZUTOSHI / TOKIEDA YUKINOBU | European Patent Office | 2019

    Free access

    Radar device, signal processor, and signal processing method

    IIDA SACHIO / KAWASAKI KENICHI | European Patent Office | 2023

    Free access

    A multimode radar signal processor

    Ianniello, J.W. / Arrol, J.V. | Tema Archive | 1990