Radar Imaging of Stationary and Moving Targets

Abstract

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Multi-static synthetic aperture radar image formation

“…We use this statistical forward model in developing a multistatic image formation method presented in the following section. In the presence of thermal noise and random target reflectivity function, we consider the following model for the measurement at the receiver (6) where denotes the thermal noise at the receiver and is defined as in (5).…”

“…In terms of the change of variables (23), we can also describe this data collection manifold as (27) Thus, for each transmitter-receiver pair, the FBP method of [33] gives an approximate reconstruction of on the data collection manifold determined by the and antenna trajectories. The superposition of all the reconstructed images using , and results in the final approximate reconstruction of as described in [6].…”

“…This can be achieved by separating the transmitted signals by some form of multiplexing in time, frequency or coding which requires central coordination of the transmit signal parameters. In this case, the multistatic synthetic aperture image formation problem reduces to the bistatic synthetic aperture image formation problem which has been well-studied [2], [6], [23], [25], [26], [33]. For bistatic SAR image reconstruction algorithms involving antennas that can form narrow beam and traversing linear or circular trajectories, see [2], [23], [25], and [26].…”

“…For bistatic SAR image reconstruction algorithms involving antennas that can form narrow beam and traversing linear or circular trajectories, see [2], [23], [25], and [26]. For bistatic SAR image reconstruction algorithms involving antennas with poor directivity and traversing arbitrary flight trajectories, see [6] and [33].…”