測距用60GHz帯NRDガイドパルスレーダ NRD Guide Pulse Radar for Level Sensor Applications at 60GHz

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An NRD guide pulse radar front-end was fabricated for level sensor applications at 60 GHz. Main emphasis was placed on circuit configuration. Typically, an oscillation power is divided by a junction circuit and is introduced into two parts. One is for transmitting wave, and the other is for LO wave to perform hetero-dyne detection. The frequency of the former is up-converted so as to be different from the frequency of the LO wave, and thus, a power amplifier is installed in the transmitting side due to low output power of the up-converted millimeter-wave. In this paper, we proposed a new circuit configuration, which consists of a Gunn oscillator with two output ports to eliminate a junction circuit, a direct pulse-modulator to obtain a high level transmitting power without an expensive millimeter-wave power amplifier, and a filter-based down-converter with an up-converter as a local oscillator.<br>Range finding was performed by using the NRD guide pulse radar, however multi-reflection occurred between a target and a planar antenna due to a pencil beam radiation of our developing planar antenna, so that precise distance estimation could not be performed for short range detection. With this in mind, an FPGA-based signal processor was developed in order to eliminate such multi-reflection. The sequential sampling method was employed to reduce experimental errors, which were investigated in terms of difference of periods between a modulated pulse train and a sequential sampling clock. The error of range finding was successfully reduced to be less than 2 % for the distance range from 2 m to 10 m under multi-reflection environment.

収録刊行物

  • 電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society

    電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society 128(6), 825-831, 2008-06-01

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10021132505
  • NII書誌ID(NCID)
    AN10065950
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    03854221
  • NDL 記事登録ID
    9531740
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-795
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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