中文摘要：

针对空间外差光谱技术（SHS）仿真研究，本文介绍了不同特征光谱光源的仿真计算。根据空间外差光谱仪的基本原理和系统结构特点，以及SHS系统参数与光谱干涉的调制关系，分别对单色光谱、连续光谱进行了理论仿真探讨，并且分析了不同带宽和采样间隔对仿真结果的影响。此外，采用空间外差光谱仪实验台装置获取实测数据，并与仿真结果进行对比分析。实验结果表明理论仿真数据和实测数据能够很好的吻合，能够为实际工作提供有益的参考，同时为SHS系统的设计和改造提供必要的依据。

英文摘要：

Focusing on simulation of Spatial Heterodyne Spectroscopy （SHS）, the emulational calculation of different characteristic light source is described. Based on the basic concept, configuration of system and the relationship between systemic parameter and interference, the conceptive simulations of monochromatic source and continuum spectrum source are discussed separately. The impact of different bandwidth and sampling bandwidth on the emulational results is also analyzed. Moreover, Contrast and analyze the experimental data obtained by Brassboard SHS and simulating result. These experimental results demonstrate that emulational data is coincident with experimental data, which offers us beneficial guide and necessary basis for designing and rebuilding SHS system.