Attenuation of radio waves caused by precipitation, especially in the form of rain, is considered to be the limiting factor for new communication systems that will exploit the radio wave spectrum at frequencies higher than ...

Geometric altitude of air targets may be found from radar or barometric measurement. However, radar rays are affected by changes in refractive index gradients which result in non-normal bending of rays. Similarly, precision ...

Protection of Network Centric Military Radio Communications depends on the ability to predict and counteract incidents that obstruct the networks’ operation. This report gives a brief summary of the different effects that ...