摘要
介绍基于LabVIEW的虚拟信号检测仪的工作原理、系统组成、设计步骤以及系统调试与仿真方法。运用FFT的选频特性及相位校正实现对正弦信号中的直流分量、幅值、频率和相位(差)的精确测量。结果表明,系统测量精度高、抗干扰能力强。
The sine-wave measurement instrumentation is developped based on LabVIEW. And its working principle, components, designing steps and debugging methods are presented in this paper. By using the frequency-selecting feature of FFT and the phase adjustment method, the parameters of sin-wave signal such as DC component, amplitude, frequency and phase can be accurately measured. The results show that the system has high precision and anti-jamming eapbility.
出处
《仪表技术》
2008年第4期16-18,共3页
Instrumentation Technology
