Resolution of digital servo control system using single-bit digital signal processing

• Tojo Keiichiro

  The University of Tokyo

• Kurosawa Minoru

  The University of Tokyo

• Oka Koichi

  The University of Tokyo

• Higuchi Toshiro

  The University of Tokyo

Bibliographic Information

Other Title

• 1ビットディジタル信号処理を用いた制御の分解能と情報量についてのシミュレーション
• 1ビットディジタルシンゴウショリオモチイタセイギョノブンカイノウトジョウホウリ

Abstract

The application of single-bit digital signal processing to mechanical control system has already been proposed by the authors. Multi-bit A/D converter has been improved to the high level. But it is difficult to make more high resolution A/D by latest semiconductor technologies. There is single-bit digital signal which is generated by a delta-sigma modulator. Single-bit digital signal has small quantized error around low frequency. Then with this single-bit digital signal processing, high resolution on controlling such a narrow band width mechanical system will be realized. In this paper, resolution of analog, multi-bit and single-bit control systems are estimated with simulation. According to simulations' results, single-bit control system has higher resolution than multi-bit system in the condition of equal bit rate.

Journal

• IEEJ Transactions on Industry Applications

  IEEJ Transactions on Industry Applications 118 (5), 623-629, 1998

  The Institute of Electrical Engineers of Japan

Keywords

• 1ビットディジタル信号
• 制御
• ΔΣ変調
• 高分解能

Details

• CRID: 1390001204659944576
• NII Article ID: 10002726731
• NII Book ID: AN10012320
• DOI: 10.1541/ieejias.118.623
• ISSN: 13488163
• ISSN: 09136339
• NDL BIB ID: 4474246
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4474246
• Web Site: http://www.jstage.jst.go.jp/article/ieejias1987/118/5/118_5_623/_pdf
• Data Source:
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  • NDL
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  • CiNii Articles
• Abstract License Flag: Disallowed