Waveform design for distributed aperture in through-the-wall radar

Abstract

Distributed aperture allows the implementation of matched illumination waveform design for improved target detection in through-the-wall radar imaging and sensing applications. We consider a multistatic radar system for detection of stationary targets with known impulse responses behind walls. The stationary and slowly moving nature of typical indoor targets relaxes the orthogonality requirement on the waveforms, thereby allowing sequential transmissions from each transmitter with simultaneous reception at multiple receivers. Performance of the matched illumination multistatic waveforms is evaluated under range gate and target orientation errors using electromagnetic modeling data.