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Journal Information-measuring and Control Systems №11 for 2013 г.
Article in number:
Interferometric mode of on-board synthetic aperture radar in case of real antenna phase center circle movement
Authors:
B.G. Tatarsky - Dr.Sc. (Eng.), Moscow Aviation Institute (National Research University)
E.V. Maystrenko - Post-graduate Student, Moscow Aviation Institute (National Research University)
D.A. Yasentsev - Ph.D. (Eng.), Associate Professor, Moscow Aviation Institute (National Research University)
Abstract:
An interferometric modeof the radiolocation systems functioning has been known for a long time. Nevertheless, to combine a highly detailed radio - image creation mode, in particular of aperture synthesizing, and an interferometric mode today is an important problem of radiovision. It-s known that the creation of a highly detailed radio - image is possible in case of antenna phase center (APC) circular movement. Thus consideration of the real aperture synthesizing implementation taking into account APC circular movement is carried out with reference to one rotor system of the carrier. The interferometric mode implementationgiven the coaxial rotor system of the carrier is considered in this article andthe target height measurement algorithm for targets located in the pointed radar observation zone is presented in it as well. The three dimensional radio - image creation as the result of the algorithm implementation in case of the on - board radar system aperture synthesizing operating mode is considered. Target height measurement accuracy estimations are presented in case of rotor system parameters variance. It is considered that the land target height measurement accuracy is dependent on radio receiver system parameters as well as antenna interferometer system parameters, particularly on an interferometric base distance, an radar working wavelength, an arrangement height of the radar antenna system phase centers, a signal/noise interrelation.
Pages: 54-60
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