Multipe-Input Multiple-Output Synthetic Aperture Radar for Multimodal Operation

This work introduces a novel Multiple-Input Multiple-Output (MIMO) SAR and a new orthogonal waveform scheme based on the Orthogonal Frequency Division Multiplexing (OFDM) technique. Demodulation combined with digital beamforming makes it possible that the OFDM waveform is used for a traditional spaceborne SAR scenario. This work deals with the MIMO SAR system operation principles and verifies the OFDM waveform by laboratory measurements.