Invariance of meansquare effective area of synthesized apertures
Abstract
Aperture synthesis on the basis of field coherent functions is considered from the standpoint of correlational field processing by additive antennas. Departures of such apertures from the law of meaneffectivearea conservation make it necessary to establish another law of conservation make it necessary to establish another law of conservation viable for energy parameters. This is done, considering that the mean effective area remain invariant, inasmuch as the radiation power pattern represents the radiation fieldintensity pattern squared. Accordingly, an analog of the original law of conservation is constructed which takes into account quasiperiodicity as well as invariance in space. It pertains to the meansqaure effective area instead, which is shown to be constant over the entire field of vision and elates the maximum effective area of a synthesized aperture to the radiation power pattern of the antenna. Design and performance calculations based on this parameter as invariant yield other energy parameters also in meansquare terms.
 Publication:

USSR Rept Electron Elec Eng JPRS UEE
 Pub Date:
 September 1984
 Bibcode:
 1984RpEEE....Q..13D
 Keywords:

 Antenna Components;
 Antenna Radiation Patterns;
 Electromagnetic Fields;
 Synthetic Apertures;
 Antenna Design;
 Coherence Coefficient;
 Conservation Laws;
 Communications and Radar