パルス圧縮法を用いた超音波距離計測  [in Japanese] Ultrasonic measurement of distance using pulse compression methods  [in Japanese]

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Author(s)

Abstract

パルス圧縮技術に基づき,およそ5mの距離測定に対する屋外実験を15〜30kHzの周波数レンジのチャープ波を用いて行った.超音波音源はツイータと圧電素子から成るエミッタである.前者の音源は後者に比べて帯域が比較的広く,今回の実験条件に向いている.加えて,M系列をもつPSKおよびFSK信号についても屋内で実験を行っている.FSK信号の精度はチャープ信号の精度と同じくらいであることがわかった.

Based on pulse compression techniques, experiments for the range measurement of about five meters are carried out outdoors using chirp signals of the frequency range from 15 to 30 kHz. Ultrasound sources are a tweeter and a piezoelectric emitter. The former source has a relatively wide frequency range compared with the latter source, and is suitable for the present experimental conditions. Additionally the experiment employs PSK and FSK with M-sequences is also performed indoors. It has been confirmed that the accuracy of the FSK signal is as high as that of the chirp signal.

Journal

  • IEICE technical report. Ultrasonics

    IEICE technical report. Ultrasonics 103(669), 31-34, 2004-02-18

    The Institute of Electronics, Information and Communication Engineers

References:  5

Codes

  • NII Article ID (NAID)
    110003174510
  • NII NACSIS-CAT ID (NCID)
    AN1001290X
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    09135685
  • NDL Article ID
    6889767
  • NDL Source Classification
    ZN33(科学技術--電気工学・電気機械工業--電子工学・電気通信)
  • NDL Call No.
    Z16-940
  • Data Source
    CJP  NDL  NII-ELS 
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