The SAR Module is an extension of the NextGen 8 GHz Pulse module and the FMCW base module. A step-motor-controlled linear axis allows movement of the transceiver and antenna and thus produces radar images with defined time-stamps and positions for SAR operations. SAR aggregates the data in a time-multiplex approach. SAR allows producing resolutions which go far beyond results of a normal antenna.
The left image show the measurement arrangement: a table with a parabolic reflector as measurement target. The second image shows a blurry simple FMCW measurement of the target. The third image shows a SAR image, exhibiting the clear contours of the parabolic reflector and the table (in a top-down view).
The SAR Module consists of:
