By using a global spectral model of quasi geostrophic barotropic vorticity equation including diabatic heating,a series of numerical experiments of multi refraction of atmospheric waves on perfect basic flows are run.

Phase delay due to atmosphere disturbance degrades the accuracy of D-InSAR for small deformation monitoring.

The influence of the atmospheric duct on the detecting range of shipborne radars;

Research on multi-path channel parameters in the marine atmospheric duct;

Study of the shadow zone of the radar in the atmospheric duct;

This paper introduces the form reasoos of atmospheric waveguide,sort and conditions of forming waveguide,analyzes the influences of atmospheric waveguide on the operating performance of shipborne radar,electronic countermeasure system and communication countermeasure system,finally presents the measure to.

Two factors, atmospheric waveguide and atmospheric noise, which have influence to the communication performance are pointed out in this paper.

According to the results,the over-the-horizon propagation of atmospheric acoustic wave is controlled by the structure of atmospheric wind and temperature,and the acoustic channel is stable.