摘要
通过对过采样∑-Δ调制器的原理分析和性能仿真,表明该调制器具有良好的噪声整形特性;在对高速信号的采集过程中,多位系统比1位系统有着更大的优越性。文中应用该技术设计一个可变换采样精度的数据采集系统。
In this paper, the theory of oversampled ∑-△ modulator is introduced. The simulation result shows that multibit ∑-△ modulator exhibits a number of attractive features compared with single - bit modulator in low oversampling. A design of data acquisition system with flexible resolution is presented.
出处
《电子测量技术》
2002年第6期3-4,共2页
Electronic Measurement Technology
