Implementation of Noise Radar Technology in Ground Based SAR for Short Range Applications

In this paper, results of implementation of noise radar technology in X-band narrowband ground based (GB) synthetic aperture radar (SAR) were presented. The radars under consideration use noise waveform (NW) as a probe signal and perform the range focusing by correlating the radar returns with a reference signal taken before transmission, while the way the azimuth compression is done is similar to that of the conventional SAR. Evaluation of the phase measurements precision with the help of GB NW SAR was carried out on the basis of the obtained interferograms. It has been shown that both NW SAR systems provide quite high precision of displacement measurements.It was also demonstrated that noise radar technology may provide rather high performance of radar designed for short range applications with interferometric capabilities including ground based SAR and d-InSAR systems.