I-Qデモジュレータとマイコンを用いた積雪深計の検討

• 田邉, 崇

• 佐藤, 栄一

• 中島, 繁雄

書誌事項

タイトル別名

• A Study on snowfall depth measuring equipment using an I-Q demodulator and a one-chip microcomputer

抄録

type:論文(Article)

The purpose pf this paper is to develop equipment for measuring depth. This equipment consists of an optical transmitting and receiving unit and a base-band processong unit. We have studied the base-band unit using an I-Q demodulator and a one-chip microcomputer, which is suitable for realizing smaller size and more flexible operation than a conventional unit. A table look-up method with an I-Q selected-phase-area unequal-interval sampling technique is proposed to detect phase information, which corresponds to snowfall depth. Through analysis using a computer simulation, we show that the proposed method can give the maximum phase-error below 0.5 degrees on a 12-bit A/D converter, even if a receiving signal level has fluctuation of 15 dB. Moreover, we experimentally estimate the phase-error performance by testing the implemented base-band unit.

収録刊行物

• 新潟工科大学研究紀要

  新潟工科大学研究紀要 8 29-35, 2003-12

  新潟工科大学

キーワード

• snowfall depth
• I-Q demodulator
• phase detection
• digital signal processing

詳細情報

• CRID: 1050565162986993152
• NII論文ID: 110001183525
• NII書誌ID: AN10590360
• ISSN: 1342792X
• Web Site: http://id.nii.ac.jp/1714/00000098/
• 本文言語コード: ja
• 資料種別: departmental bulletin paper
• データソース種別:
  • IRDB
  • CiNii Articles