摘要
:利用过采样原理可实现高精度的 A/D转换。对此文中提出了一种新的并行高阶过采样 A/D转换器方案 ,用该方案实现的 A /D转换器具有物理概念清晰、结构稳定、易于实现等特点。文中还研究了该方法的实现过程 ,给出了三阶调制器积分器输出波形及总输出信号频谱图。
High precise A/D converters can be implemented by using oversampling method. This paper presents a new cheme on a parallel oversampling high-order A/D converter. The A/D converter realized by the scheme has the following features: physical concept clarity, styucture stabilization, easy implementation, etc. This paper also studies the implementation process of the scheme and gives the output waveforms of a 3-order modulator integrator and the spectrum figure of total output signals. The scheme can be used for data acquisition of acoustic signals.
出处
《探测与控制学报》
CSCD
2000年第2期41-45,共5页
Journal of Detection & Control
关键词
过采样
A/D转换
数据采集
oversample；A/D converter；data acquisition
