Optimisation of the spatial attitude of the bistatic and multistatic synthetic aperture radar

Abstract

In this paper the advantages of the multiposition synthetic aperture radar (SAR) system are discussed. Usage of SAR requires careful positioning of receivers and transmitters. This positioning as well as the transmitted signal determines the quality of the estimation through the space ambiguity functions which strongly depend on relative positions of the transmitter and receiver. Bistatic and multistatic synthetic aperture radar system has advantages over the single position remote sensing system. Special regard must be paid to the fact that spatial resolution as well as intervals of the ambiguous measurements strongly depend on spatial attitude of the receiver and transmitter in the bistatic and multistatic SAR. Spatial attitude optimisation therefore must be made with the following scheme: analysis of the equal distance lines and its gradients. Then spatial attitude optimisation must also be made for analysis of the equal Doppler frequency lines. Each bistatic pair is modelled for the side looking and forward side looking SAR with the same space attitude and velocity.