And we simulate the thing by different spatial frequency hartmann - shack wavefront sensor which is used in detecting the far field of laser beam , and we get the result that if magnitude of wave aberration is lower the dynamic range of sub - aperture of wavefront sensor , the more the spatial frequency of hartmann - shack wavefront sensor is , the more the accuracy of hartmann - shack wavefront sensor in detecting high frequency aberration is 并且波前像差在hartmann - shack波前傳感器子孔徑動態(tài)范圍之內(nèi),空間分辨率高的hartmann - shack波前傳感器對高階像差波前探測時(shí),其光束質(zhì)量診斷精度高于空間分辨率低的hartmann - shack波前傳感器的光束質(zhì)量診斷精度。