High-resolution signal processing techniques for through-the-wall imaging radar systems

TÜRK A. S., Ozkan-Bakbak P., Durak Ata L., Orhan M., Unal M.

INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES, cilt.8, sa.6, ss.855-863, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 8 Sayı: 6
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1017/s1759078716000593
  • Dergi Adı: INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.855-863
  • Anahtar Kelimeler: Compressive sensing, Ground penetrating radar, Through-the-wall imaging, Synthetic aperture radar, Multiple signal classification, Stepped frequency radar, RECOVERY
  • Marmara Üniversitesi Adresli: Hayır

Özet

Through-the-Wall Imaging is an ever-expanding area in which processing time, scanning time, vertical, and horizontal resolutions have been tried to improve. In this study, several methods are investigated to obtain efficient reconstruction of through-the-wall imaging radar signals with high resolution. Microwave radar signals, which are produced in YTU Microwave Laboratory, are processed by compressive sensing (CS). B and C scanned reflection data samples collected between 1 and 7 GHz frequency band are taken randomly at 1/4, 1/2 of whole amount and reconstructed by CS method. Considering the signal structure, 10 and 20 compressible Fourier coefficients are taken through CS to analyze the difference between them. In addition, we applied synthetic aperture radar (SAR) processing, also combined with SAR-Multiple Signal Classification over raw data. Experimental performance results are given and shown in the figures with high quality.