Real-time remote detection

reliable discrimination and quantitative analysis for chemical agents are imperative for chemical defense

antiterror and nation security.The remote detection technologies can be classfied as active and passive detection.The active detection includes differential absoption Lidar

open-path Raman spectrum technology

active Fourier transform spectroscopy

laser induced fluorescence

etc.The passive remote detection adopts natural light sources

and consists of time-scan and spatial modulation Fourier transform Infrared(FTIR) spectroscopic technologies

hyperspectral and multispectral imaging technologies.The combination of static high-resolution FTIR

Laser ranging technology

modern pattern recognition and signal processing technology is the developing trend of remote detection for chemical agents.