多功能光学设施高灵敏度太赫兹模块的高精度观测数据获取与校准方法研究用于解决2m多功能光学设施中高灵敏度太赫兹模块的在轨校准及快速OTF观测时频率和位置校准的关键问题。在此研究中，通过地面波束测量来准确模拟望远镜的在轨时的主波束效率，建立彼此对应的相互模型。通过光学设施的轨道数据模拟计算不同观测目标时的频率偏移的范围，为后期更高频率观测提供计算方法。同时，由于当前观测条件限制，解决光学设施位置更新慢的问题，为得到更高的位置精度，将采用预估及内插数值算法，为快速OTF观测提供技术支持。满足OTF高精度成图的需要。

Study on the acquisition and calibration methods of high-sensitivity terahertz module of multi-functional optical facility, to solve key issues about the in-orbit calibration of high-sensitivity terahertz modules in 2 meter multi-functional optical facilities and frequency and position calibration during rapid OTF observation. By beam measurement at ground, and simulation accurately the telescope's in-orbit main beam efficiency, then building each other's corresponding models. Calculating the range of frequency offsets of different observation targets by using orbital data simulations of optical facility, it provides a calculation method for later observations at higher frequency. At the same time, due to the current observation conditions, the problem of location messages update slowly of optical facility will be solved. In order to obtain higher accuracy position, the estimation and interpolation numerical algorithms will be used to provide technical support for rapid OTF observation. All of things will meet the needs of OTF high-precision mapping in orbit observation.