摘要
分析了待探测的瞬态光信号、背景光信号和高频干扰信号频率的特性,利用LabVIEW软件平台设计虚拟仪器,进行信号处理和分析·设计了数字滤波器,对采集到的信号进行数字滤波,对滤波后的目标信号进行谱估计,得到功率谱密度·试验结果表明,该方法设计简单,运行可靠,滤波效果显著·
The frequency features of the optical transient signal, the background signal and high frequency noise are analyzed, and the virtual instruments of signal processing are given based on LabVIEW. The design of the digital filter is introduced and the original signal is filtered, and then the spectrum estimation of the filtered signal gives the power spectrum density. The test result shows that the new method is simple, reliability and effective.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2006年第5期772-775,共4页
Acta Photonica Sinica
关键词
虚拟仪器
瞬态光信号
数字滤波器
谱估计
Virtual Instrument
Optical Transient Signal
Digital Filter
Spectrum Estimation
