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 [in Japanese] Resolution of digital servo control system using single-bit digital signal processing [in Japanese]
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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.
- IEEJ Transactions on Sensors and Micromachines
IEEJ Transactions on Sensors and Micromachines 118(5), 623-629, 1998-05
The Institute of Electrical Engineers of Japan