伽玛暴发现至今已40多年，但其起源与喷流机制至今依然是未解之谜，伽玛暴偏振的测量对喷流机制的确定有着至关重要的作用。中欧合作研制的伽玛暴偏振探测器POLAR是专门用于探测伽玛暴偏振的探测仪器，计划于2015年发射升空。POLAR入轨后每天将产生大量的科学数据，将这些观测数据转化为科学产出，离不开对数据的分析与对观测结果的研究。本项目拟主要进行POLAR在轨观测数据的分析方法研究和误差研究，并完成前期在轨观测数据的伽玛暴偏振信息的提取。此外，本项目还将利用POLAR偏振测量结果开展伽玛暴偏振相关的理论研究，以争取在伽玛暴偏振研究领域取得突破。

More than 40 years have been passed since the discovery of gamma ray bursts (GRBs), but their progenitors and creation mechanism still remains a mystery. It is well accepted that the measurement of the polarization level of GRB's prompt emission has a great potential in revealing the creation mechanism of GRBs. The space-borne Compton polarimeter POLAR developed by Chinese institutions and European institutions, which is supposed to be launched in 2015, is dedicated to measure the linear polarization of the prompt emission of GRBs with high sensitivity. Mass of observation data will be produced every day, which needs to be analyzed to obtain the physics results. This project will focus on the study of the data analysis methods of the in-orbit observation data and perform the analysis of the early observation data to obtain the polarization information; furthermore, the polarization information extracted from POLAR data will be used to study the polarization related issue of GRBs, which might bring breakthroughs to the research of GRBs.