A New ethod to improve Precision of Target Position in RFS

Abstract

Radio frequency simulation systems (RFSS) are widely applied in the radio seeker research, but in low band (1-2GHz), the position precision of radio frequency array as a key parameter is hard to insure by hardware ways, and often hard to meet the experimental requirement. One new method by software calibration is put forward. By analyzing the position errors of array systematically, errors are decomposed into systematical error of array element and random error of the system environment. By summarizing the distributing character of systematical error, a beforehand setting calibration arithmetic is deduced, the equation of array corrective transformation can be calculated exactly. Finally by experimental validation, the position precision of array is enhanced by more than four times.