Isolated target 3-D position estimation in SS-BSAR

Space-surface BSAR (SS-BSAR) is a subclass of Bistatic SAR (BSAR) that has an essentially asymmetric structure, e.g. the transmitter may be on a moving space/air borne platform and the receiver is stationary on the ground or vice versa. Non-cooperative transmitters such as non-geostationary navigation and communication satellites can be used in SS-BSAR. BSAR systems have recently been the subject of several studies, but little attention has been given to the potential of the location of targets. In the paper, the performance of the estimation of 3-D position of a target in a multi-look SS-BSAR is obtained analytically and illustrated by computer simulation using ambiguity function analysis and the maximum likelihood estimate approach.