Realization of High-Order Filters for 1-bit Signal Processing Based on Delta-Sigma Modulation / ΔΣ変調に基づく1ビット信号処理における高次のフィルタの実現
- Resource Type
- Journal Article
- Authors
- Shigeru Okuma; Shinji Doki; Yoshimitsu Murahashi; 大熊 繁; 村橋 善光; 道木 慎二
- Source
- 電気学会論文誌C(電子・情報・システム部門誌) / IEEJ Transactions on Electronics, Information and Systems. 2005, 125(12):1891
- Subject
- 1-bit signal processing
1ビット信号処理
Delta-Sigma modulation
Filter
ΔΣ変調
フィルタ
- Language
- Japanese
- ISSN
- 0385-4221
1348-8155
We discuss a realization method of basic 1-bit signal processing based on Delta-Sigma modulation in this paper. Additionally, we show the characteristics of basic 1-bit processor and an effective design method from the view point of SNR. As the application of the 1-bit signal processing, we proposed a realization method of high-order filters based on Delta-Sigma modulation. We applied the effective design method to decide coefficients of a 4th-order butterworth low pass filter. We show that the filter designed by using the proposed method achieves the highest SNR.