Through-the-wall imaging using Wi-Fi signals
| Autor: | Wei Zhong, Kai He, Lianlin Li |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
wireless lan
indoor radio backpropagation routing protocols uhf antennas synthetic aperture radar radar imaging radar computing commodity wi-fi signals indoor environment novel imaging strategy high-resolution three-dimensional through-the-wall imaging huygens principle synthetic aperture mode antennas classical filtered back propagation algorithm fbp algorithm ieee 802.11n protocol wireless router frequency 2.4 ghz bandwidth 20.0 mhz Engineering (General). Civil engineering (General) TA1-2040 |
| Zdroj: | The Journal of Engineering (2019) |
| Druh dokumentu: | article |
| ISSN: | 2051-3305 |
| DOI: | 10.1049/joe.2019.0544 |
| Popis: | In this work, the authors experimentally investigate the high-resolution three-dimensional through-the-wall imaging exploiting commodity Wi-Fi signals in an indoor environment. The authors also provide physical insights into this novel imaging strategy, which has been derived from the Huygens' principle. In the authors’ experiments, a pair of antennas are used to acquire the Wi-Fi signals reflected from the scene in a synthetic aperture mode. The classical filtered back propagation (FBP) algorithm is then used to form the image based on these signals. The authors use an IEEE 802.11n protocol wireless router working at 2.4 GHz with bandwidth of 20 MHz. It can be faithfully expected that such imaging technique can open an exciting new door for various practical applications including safety screening and others. |
| Databáze: | Directory of Open Access Journals |
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