The POLAR detector is a space based Gamma-Ray Burst (GRB) polarimeter sensitive in the 15-500 keV energy range. Apart from its main scientific goal as a Gamma-Ray Burst polarimeter it is also able to detect photons from pulsars in orbit. By using the six-months in-orbit observation data, significant pulsation from the PSR B0531+21 (Crab pulsar) was obtained. In this work, we present the precise timing analysis of the Crab pulsar, together with a phase-resolved spectroscopic study using a joint-fitting method adapted for wide field of view instruments like POLAR. By using single power law fitting over the pulsed phase, we obtained spectral indices ranging from 1.718 to 2.315, and confirmed the spectral evolution in a reverse S shape which is homogenous with results from other missions over broadband. We will also show, based on the POLAR in-orbit performance and Geant4 Monte-Carlo simulation, the inferred capabilities of POLAR-2, the proposed follow-up mission of POLAR on board the China Space Station (CSS), for pulsars studies.

POLAR检测器是对15-500 keV能量范围敏感的基于空间的伽马射线爆破（GRB）旋光仪。除了作为伽马射线爆破旋光仪的主要科学目标外，它还能够检测轨道脉冲星的光子。通过使用六个月的在轨观测数据，从PSR B0531 + 21（蟹状脉冲星）获得了重要的脉动。在这项工作中，我们介绍了蟹状脉冲星的精确定时分析，以及使用适用于POLAR等宽视场仪器的联合拟合方法进行的相分辨光谱研究。通过在脉冲相位上使用单次幂定律拟合，我们获得了1.718到2.315的光谱指数，并确认了反向S形的光谱演化，与其他宽带任务的结果相同。我们还将展示，