Recently, there has been an increased interest in aerospace methods of studying the Earth's surface, in particular, forest cover, the main tool of which is artificial and natural electromagnetic radiation of the radio-frequency range. The forest is semi-transparent to this band. This means that the forest can be probed to its full depth using radio waves, which is particularly important, for example, for ecological monitoring of the forest as the "lungs of the planet". The procedure of signal sensing and registration with the help of microprocessor-based control systems provides results of high accuracy, makes it possible to improve the accuracy of radiophysical characteristics of the forest cover and solve inverse problems.
