Microwave imaging with spatial-domain indirect holography

A spatial domain formulation of indirect holographic method for microwave imaging is presented in this contribution. Synthetic data obtained from a suitable phase shifting of the reference signal at the transmitting (Tx) antenna are adopted to be summed with the signal captured by the receiving (Rx) antenna. Amplitude data resulting from this operation are then used to retrieve the complex field scattered from passive objects. Preliminary experimental validations of the proposed phaseless technique are discussed to prove the validity of the approach.