讨论了一种基于Hartmann Shack (H S)传感器的扩展信标相关波前探测方法。通过在传统H S探测光路的物平面上加入视场光阑消除了子孔径像斑的重叠问题 ,并利用一种快速相关算法计算各像斑的相对位移 ,进而得到各子孔径波前的相对斜率。光学实验研究证实了该相关波前探测方法能够较精确地测算出波前像差 ,从而使目前使用最多的H S传感器具有扩展信标波前探测能力 An extended beacon correlation wavefront detection method based on the Hartmann Shack (H S) sensor is discussed. By adding a field diaphragm to the object plane of the conventional HS detection optical path, the sub-aperture speckle overlap problem is eliminated and a relative fast shift algorithm is used to calculate the relative displacement of each speckle and the relative slope of each subaperture wavefront . Optical experiments have confirmed that the related wavefront detection method can more accurately calculate the wavefront aberration, so that the most widely used H S sensor has the ability to extend the beacon wavefront detection