Recognition of reception posts of multi-position radar systems on reflective properties of antennas

On the basis of ideal observer criterion the algorithm of recognition of reception posts of multi-position radar systems on reflective properties of their antennas in case of radiation is constructed by multi-frequency signals. The unmasking sign of the reception antenna is contrast decrease in an effective surface of dispersion in a strip of working frequencies due to absorption of energy of the falling electromagnetic wave the approved loading. With use of wave fronts method the model is developed and the analysis of the disseminating properties of the mirror parabolic antenna is carried out; by results of measurement of mutual spectral density of capacity of the probing and reflected signals the experimental assessment of an effective surface of dispersion of this antenna is executed. The probability of the correct recognition of reception posts of the radar-tracking systems equipped with such antennas and the probability of a false alarm accompanying it are researched.