Real-time processing of multi-channel SAR data with GPUs

The AMBER multichannel FMCW SAR enables novel SAR and GMT modes, such as simultaneous Strip and Spot imaging. To enable such advanced modes in an airborne processor for small aircraft, a high performance and power efficient computing solution is required. Multi-channel SAR processing by means of back projection has been implemented on several GPU platforms, and performance tests have been performed. The results indicate that real-time solutions with state-of-the art GPUs are feasible.