摘要
根据相关函数的特性,通过自相关和互相关原理导出适合于虚拟仪器测量的数学表达式,由此设计出虚拟相位差计,体现了虚拟仪器中软件即仪器的观点.
Based on the characteristic of correlation function, mathematics expression fit for virtual instrument are derived according to principle of autocorrelation and crosscorrelation. Then the virtual phase meter is designed, and the viewpoint that the software is the instrument is embodied.
出处
《物理实验》
2005年第7期18-19,23,共3页
Physics Experimentation
关键词
相位差
互相关
自相关
虚拟仪器
phase difference
crosscorrelation
autocorrelation
virtual instrument
