硬X射线调制望远镜（HXMT）是我国自主研发的第一颗空间天文观测卫星。它以李惕碚院士和吴枚研究员提出的直接解调方法为基础，采用调制扫描的成像方式，在0.1keV至250keV能段观测宇宙，以期在黑洞、X射线双星、宇宙X射线背景等领域作出重要发现。在HXMT观测数据的成像处理过程中，除了应用已有的直接解调方法，我们还需在降低算法的计算复杂度，成像结果的统计分析，以及弥散源的重建等领域开展细致的研究工作。通过本课题的研究，可以达到如下目标：1、HXMT观测数据的成像处理速度满足项目的工程化要求；2、成像算法更具普遍性，既可以用来处理致密源，又适用于处理弥散源；3、成像结果更为准确、可靠，对图像中弱源的真伪可以给出严格的统计学判据。本课题的研究成果应用到HXMT的成像软件后，将可以帮助天文学家从HXMT的观测数据中取得更多的科学发现。

The Hard X-ray Modulation Telscope (HXMT), which is based on the Direct Demodulation Method (DDM) proposed by Tipei Li and Mei Wu, will be the first astronomical space telescope in China. The HXMT applies an imaging method which uses scanning-modulation, and will observe the cosmos in an energy band which ranges from 0.1 keV to 250 keV. It is expected to have some important discovers in Black Holes, X-ray binary systems and cosmic X-ray background. During the image reconstruction of the HXMT, we will not only use DDM, but also do something to reduce the complexity of the algorithm,and provide the statistical analysis of the results, and the image reconstruction of extended soures. Therefore, after our research: 1,The speed of the algorithm will fullfil the requirements of the project; 2, The algorithm will be much more universal, not only suitable for compact sources, but also suitable for extended sources; 3, The results will be more accurate and reliable. A strict statistical true-or-false analysis of the weak sources in the results will be provided. If the achievement of this project be applied to the software of the HXMT, then it will help astronomers to obtain more scientific discovers.