【摘要】 在3040～2800cm^-1范围内,丙烷、正已烷的红外吸收光谱相互重叠严重,本文利用自编的卡尔曼滤波与多波长线性回归方法程序（Turbo PASCAL语言,4.0版本）进行丙烷、正已烷混合气体红外吸收光谱的分离,采样间隔为5或10cm^-1,共采样30个点。对8个不同配比的标准混合气体进行分析,结果表明两种算法所得结果相近,相对偏差大多在±5%左右。更多还原

【Abstract】 Severly overlapped IR spectra of propane and n-hexane were obtained in the range of 3040 to 2800cn^-1, In this paper, the overlapped IR spectra of propane and n-hexane were resolved by the Kalman filter（KF） and multi-wavelength regression （MWR） method respectively. The programs were written in Turbo PASCAL language （ver 4.0） and ran on the IBM PC/AT microcomputer. The IR spectral data were measured on a HITACHI 270-50 IR Spectrometer. 30 points were digitized in the range of 3040 to 2800 cm^-1 with the sampling interval of 5 or 10cm^-1. 8 standard mixture samples were analyzed with the relative deviation of about ±5%.更多还原