Abstract:Aero-optical effects can easily adversely affect the seeker target imaging tracking systems, However, the traditional Hartmann wavefront sensor cannot be used in the target imaging tracking system of the seeker due to its small detection field. This paper introduces a focal plane Hartmann wavefront sensor that can measure a large field of view. At the same time, for the problem that the traditional mode method cannot measure with high precision in the focal plane Hartmann, an optimized wavefront capable of high precision measurement is proposed. Restoration Algorithm—A wavefront restoration algorithm based on Gerchberg-Saxton iterations. Then, according to the structural design that meets the large field of view measurement, a simulation platform is built and the optimized wavefront restoration algorithm is used to restore the simulated input aberration. Finally, a large-field-of-view wavefront restoration experimental platform is built using multiple lasers, and the focal plane Hartmann wavefront sensor is verified to have the ability to achieve high-precision large-field-of-view wavefront measurement.