Bistatic SF/CW Radar System Design for Detection Range Enhancement of Living Human Under Wreckage
27th International Radar Symposium, IRS 2026, Krakow, Polonya, 19 - 21 Mayıs 2026, ss.464-468, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Doi Numarası: 10.23919/irs70539.2026.11548824
- Basıldığı Şehir: Krakow
- Basıldığı Ülke: Polonya
- Sayfa Sayıları: ss.464-468
- Anahtar Kelimeler: Ground-penetrating radar, Search and Rescue, Stepped-frequency radar
- Yıldız Teknik Üniversitesi Adresli: Evet
Özet
This work proposes bi-static ultra-wide band (UWB) radar system approach to detect life-sign motions of trapped humans under heterogeneous and lossy wreckage medium. On this scope, an embedded SF/CW radar data acquisition and processing system targeting near-field and through-debris sensing is designed for potential use in collapsed structure inspection. Moreover, electromagnetic wave reflections conducted in a realistic search and rescue training area are interpreted using advanced signal processing and deep learning techniques. The UWB amplitude and phase measurements acquired over programmable frequency sweeps are examined in a complex spectrum and transformed into range-domain signatures via inverse fast Fourier transform (IFFT) to obtain the range profile with good resolution. Here the debris-oriented CW frequency yields the most efficient Doppler measurements. Background subtraction and adaptive filtering techniques are employed to improve robustness in cluttered environments. It is aimed to improve the human motion detection range and false alarm performance of the search and rescue radar by using bistatic setup approach and benefiting advanced signal processing techniques that may overcome complex environmental challenges.