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A feasibility study on real-time concealed object detection in foliage using STDCC radar

Duarte, L. ; Vala, M. ; Ribeiro, C. ; Alves, L. ; Fernandes, C. A. ; Caldeirinha, R. F. S.

A feasibility study on real-time concealed object detection in foliage using STDCC radar, Proc 13th IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing CSNDSP, Porto, Portugal, Vol. , pp. - , July, 2022.

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Abstract
This paper reports on the first results of a Swept Time-Delay Cross Correlator (STDCC) based radar performance
for the detection of concealed targets in a foliage. The real-time STDCC radar operating at 25 GHz with 500 MHz bandwidth is benchmarked against a VNA technique using a central frequency of 11 GHz with 18 GHz bandwidth. A set of measurements were performed to assess multiple trees attenuation and compare them with literature model estimations. Both radars may accurately detect the position of a concealed corner reflector, showing their great stability over time. The object distance accuracy was confirmed to be related with the used bandwidth, comparing both technologies with different and same bandwidths. Our analysis also confirmed the expected 20 dB of single tree attenuation, showing similar detections/attenuations with both radar systems.