| 摘要 |
<p>The invention provides a method for detecting targets comprising moving and stationary targets with a radar system equipped with Synthetic Aperture Radar, SAR, on board a SAR platform, comprising navigation equipment for accurate determination of the position of the SAR platform. The SAR platform is transversing a stationary ground region and targets in the said ground region, in which the SAR platform obtains radar data by means of at least one antenna. The radar system further comprises a SAR processor recording the radar data and the position of the antenna or antennas for each transmitted radar pulse. Wherein radar data within synthetic sub-apertures, are : successively merged in Niteration steps into SAR images of increasing resolution of the surveyed region and where each iteration step consists of forming a new SAR image at a new iteration level by a linear combination of neighbouring SAR images in the previous iteration step. The invention also provides a corresponding radar system and a SAR processor is further used for calculating the detection and positioning of targets comprising moving and stationary targets.</p> |
