Study on the influence of atmospheric turbulence on the along axial beam

In order to obtain clearer interference pattern of interferometric radar and obtain more accurate detection target, this paper studies the influence of atmospheric turbulence on axial transmission beam. The response of random wave number and transmission distance to amplitude fluctuation and phase fluctuation is discussed respectively. The aim is to establish a phase compensation plate in the reference optical path, so that the interference optical path and phase can meet a specific range, and to promote the development of interferometric radar technology. The study shows that the random wave number caused by atmospheric turbulence has obvious influence on amplitude fluctuation and phase fluctuation, and transmission distance is relatively weak influence on them. As the change of random wave number and transmission distance, the amplitude fluctuation and phase fluctuation will also change. The phase compensation plate should be selected integrated according to the atmospheric turbulence intensity and transmission distance.