Influence of Transients on the Interferometric SAR Characteristics

Inhalt:
As it is shown in work "I. D. Zolotarev, Ya. E. Miller and T. O. Pozharsky, Influence of Transients on the Interferometric SAR Characteristics", the transients in the elements of the SAR formation circuit provide a significant impact on the direction of the major maximum of the directional pattern. In this case, when implementing the SAR radars, it is necessary to pay serious attention to the actual SAR characteristic obtained in the result of the corresponding signal conversion. This factor being neglected can result in rough errors at determination of the parameters of the detected surface. A lot of works believe that smoothing of the envelope curve shape will decrease the influence of transients on the SAR characteristic. Due to this, it seems to be important to consider the SAR formation at the use of a bell-shaped sensing signal with the Gaussian envelope curve. The radio pulses with a sinus-quadratic envelope curve are the characteristics similar to the given signal. The report deals with the discussion of the SAR formation for the given signal type at various Q-factors of the antenna filters and signal duration.