【摘要】 本文简单介绍了阿达玛变换成象光谱技术的基本原理,提出了红外成象光谱测量实验方法,并给出对CO₂气体进行光谱测量的实验结果。更多还原

【Abstract】 The fundamental theory of Hadamard Transform Imaging Spectro-scopy(HTIS)is described briefly from the angle of transform coding.According to the symmetric π transformation and fast Hadamard transform,the formulae for reconstructing images and spectra are derived in the case of two-dimensional vertical folding spatial coding.The numbers of complete monochromatic images are presented on the coding construction and orders respectively designed by the authors.A self-made optomechanical Hadamard transform imaging spectral system is briefly described,which is controlled and then the data are processed by the micro-computer.The experiment for measuring infra-red absorption imaging spectra of CO2 was accomplished and the detailed analysis of measuring results has been carried out.Both the spectra of pixels and the images of spectral elements for the infra-red absorption imaging spectra of CO2 at wavelength of 2.69μm are given.The significance in the practical application of infra-led absorption imaging spectra is discussed更多还原