基于干涉图匹配的目标识别技术

摘要

One advantage of interferential spectrometer is that it provides high-resolution spectrum, which can be used to recognize and analyze objects through spectral matching. The Fourier transform is a necessary step in converting inferferogram to spectrum, while it is complex and time-consuming. A spectral recognition technology based on interferogram matching is proposed without Fourier transform. The interferogram of object to be matched is obtained by interferential spectrometer, and it is matched to the expected one through correlation calculation, which is a relatively rapid process. The simulation result validates the feasibility of the technology.%干涉光谱技术的优点是可以获取高分辨率的目标光谱图,再通过光谱匹配,可以实现目标的识别和分析,但它须经过从干涉图到光谱图的傅立叶变化过程.针对快速目标识别的应用,提出了基于干涉图匹配的光谱识别技术.在干涉光谱探测设备得到目标干涉图后,通过对其干涉图的匹配操作,可以确定待识别目标和期望目标的相似程度.由于目标识别中省去了傅立叶变化,使目标光谱识别的速度得到了提高.仿真计算结果表明,干涉图匹配技术从理论上是完全可行的.