Passive Optoelectronics Systems For Standoff Gas Detection: Results Of Tests

The paper presents a review of optoelectronic systems for stand-off detection of gases. Selected passive devices are presented, including thermal cameras with modified optics for remote gas detection and imaging Fourier transform spectrometers. The latter ones are capable of remote measurements of spectral characteristics of chemical compounds and, after further data analysis, they provide gas identification capabilities and even concentration estimates. This paper presents detection and identification of gases using an infrared imaging Fourier-transform spectrometer. The principle of operation of the spectrometer and the method for gases detection and identification is shown in the paper. The new software with implementation of method based on Clutter Match Filter, focused on detection and identification of gases is presented. Some results of the detection of various types of gases are also given.