摘要
介绍了基于PC104的失真度测量仪的数字化测量原理、硬件设计方案和软件流程。根据被测信号的不同特点,文中提出了基于准同步法、曲线拟合法和数字陷波滤波法的失真度测量方案,以提高失真度的测量准确度。
The digitized measurement principle, hardware scheme and software flowchart of PC 104-based distortion measurement instrument are introduced in this paper. A measurement scheme, which is comprised of quasi-synchronous sampling method, curve-fit method and digitized notch filtering method, is proposed according to the features of signal under test, and measurement accuracy is improved by this means.
出处
《宇航计测技术》
CSCD
2004年第2期29-33,共5页
Journal of Astronautic Metrology and Measurement
关键词
PCI04
失真度
测量仪
设计
曲线拟合法
准同步法
Distortion measurement PC104 Quasi-synchronous sampling Curve-fit method Digital notch filtering method