CST – Computer Simulation Technology

Frequency-Modulated Interrupted Continuous Wave as Wall Removal Technique in Through-the-Wall Imaging
Francesco Fioranelli, Sana Salous, Xavier Raimundo
IEEE Transactions on Geoscience and Remote Sensing
Volume: 52, Issue: 10, October 2014
Frequency-modulated continuous wave (FMCW), frequency-modulated interrupted continuous wave (FMICW), through-the-wall imaging, ultrawideband (UWB) radar
Undesired wall reflections in through-the-wall imaging can mask the return from actual targets and saturate and block the receiver. We propose frequency-modulated interrupted continuous wave (FMICW) signals as a novel wall removal technique and validate its effectiveness through numerical simulations and experiments performed using a radar system built for the purpose. FMICW waveforms appear to mitigate wall reflections and benefit the through-wall detection of stationary targets and of people moving or breathing behind different kinds of wall.

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