Ka-Band Systems and Processing Approaches for Simultaneous High-Resolution Wide-Swath SAR Imaging and Ground Moving Target Indication
نویسندگان
چکیده
Although high-resolution wide-swath (HRWS) SAR imaging and ground moving target indication (GMTI) systems from the system architecture point of view look quite similar (both system types employ multiple receiving (RX) channels arranged along azimuth direction), they generally need to be operated in different modes, in particular with significantly different PRFs. HRWS systems require a comparatively low PRF, reflecting the overall length of the full antenna. The low PRF enables wide-swath imaging, and the multiple RX channels are used for signal spectrum reconstruction. The PRF is ideally chosen such that the uniform sampling condition of the RX antenna array is fulfilled: 2 ⋅ , (1)
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