在现代光电对抗技术中,准确地测量目标或诱饵的红外辐射能量随波长的分布情况具有极其重要的意义。新近发展起来的傅里叶交换光谱法具有光通量大、信噪比好、频率精度高等优点,特别适用于这一领域的测量研究工作。本文简单介绍了傅里叶变换光谱法的测量原理,在对红外分谱辐射能量的理论背景和方法进行讨论后,以某种红外诱饵炬为测量实例,说明其实际应用。 In modern photoelectric countermeasure technology, it is extremely important to accurately measure the distribution of the infrared radiation energy of the target or bait with the wavelength. The newly developed Fourier transform spectroscopy has the advantages of large luminous flux, good signal-to-noise ratio, high frequency accuracy and is especially suitable for the measurement and research work in this field. In this paper, the measuring principle of Fourier transform spectroscopy is introduced briefly. After discussing the theoretical background and method of radiant energy of infrared spectroscopy, an example of infrared decoy torch is given to illustrate its practical application.