A High-Speed Continuous Wave GPR
In this work an innovative high speed continuous wave stepped frequency GPR has been designed and implemented with the aim of overcoming the low speed issue of wide bandwidth CW-SF GPRs. It is based on a structure combining a Digital Direct Synthesizer (DDS), a Phase Lock Loop (PLL) and a quadrature...
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| Veröffentlicht in: | Sensing and imaging 2005-01, Vol.6 (1), p.43-57 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | In this work an innovative high speed continuous wave stepped frequency GPR has been designed and implemented with the aim of overcoming the low speed issue of wide bandwidth CW-SF GPRs. It is based on a structure combining a Digital Direct Synthesizer (DDS), a Phase Lock Loop (PLL) and a quadrature modulator (I/Q Modulator). The radar is an L-S band GPR able to scan a 1 GHz bandwidth (1500-2500 MHz) with 200 steps in 10 ms. The system has been developed for automatic synthetic aperture radar (SAR) imaging of historical-artistic interest structures. Some system tests and laboratory tests on a realistic masonry setup were carried out in order to asses the performances of this system. |
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| ISSN: | 1566-0184 1557-2064 1573-9317 1557-2072 |
| DOI: | 10.1007/s11220-005-4225-0 |