Analysis of accuracy requirements for an inertial navigation system in synthetic aperture radars

Resumo

This paper describes the effect of trajectory signal phase distortion on the image received by a millimeter-wave automobile synthetic aperture radar (SAR). Calculations of the requirements for the errors of the sensors included in a strapdown inertial system that provide the resultant image with acceptable quality are given. Parameters of different grade inertial sensors are analyzed; recommendations for choosing inertial sensors depending on SAR operating conditions and required resolution are analyzed.