Enhanced High-Resolution Imaging for Non-Destructive Testing Using STDCC Radar

This paper presents the first high-resolution imaging experiments for Non-Destructive Testing (NDT) using a Swept Time-Delay Cross Correlator (STDCC) radar. To achieve a high-resolution inspection, a reconfigurable radar architecture, along with an agile mmWave dual-polarised transceiver, is proposed. This agile setup allowed authors the study of Synthetic Aperture Radar (SAR) technique performance on object image reconstruction for its inspection. This work focused on the radar reconfigurable parameters to enhance the imaging accuracy of the SAR technique and allow its inspection. Here, authors also evaluated the effect that both co-polarisation components had on the target reconstruction. Results demonstrate the proposed radar capability and accuracy to represent a given sample in terms of its physical dimensions and internal features.