Filippo Biondi of the University of Strathclyde proposed a SAR Doppler tomography workflow, adapted from geophysical remote sensing, and applied it in a study of the Great Pyramid of Giza. The journal later retracted the paper containing its claimed corridor reconstructions. Radio echoes from different acquisition positions can produce 3D radar-reflectivity images, but these are not direct density maps or proof of buried structures. Unlike Scan Pyramids' muon tomography, the method needs no detectors inside the monument, though permits may still be required. 📡🔍
Filippo Biondi’s retracted SAR Doppler tomography study at Giza
Key facts
- The researcher is Filippo Biondi of the University of Strathclyde, not Filippo Beondi.
- Biondi's 2022 Remote Sensing paper described a SAR Doppler tomography processing method for the Great Pyramid of Giza, adapted from geophysical applications; describing this simply as new software for satellite data is imprecise.
- SAR is not exclusively satellite-based; it can be spaceborne, airborne or ground-based. The cited work specifically concerns SAR Doppler tomography.
- Multiple radio-echo acquisitions can be processed into 3D estimates of radar scattering or reflectivity, not direct measurements of pockets of lower density.
- The method does not require muon detectors inside the monument, unlike Scan Pyramids' approach, but remote sensing and fieldwork can still require site permits.
- The journal later retracted the paper containing the claimed Giza corridor reconstructions, so those structures are not established findings.
Sources
What Is… Synthetic Aperture Radar (SAR)? - EVONAevona.com
Synthetic Aperture Radar (SAR) is an incredibly powerful distant Earth observation tool used to create high-resolution images the Earth's surface.
The satellites using radar to peer at Earth in minute detail - BBCbbc.com
Synthetic aperture radar (SAR) allows satellites to bounce radar signals off the ground and interpret the echo – and it can even peer ...
Radar satellite will give new view of changes to Earth's surfacenews.cornell.edu
This artist's rendering shows the NASA-ISRO SAR satellite, which will use synthetic aperture radar – and Cornell expertise – to monitor ...
Synthetic aperture radar (SAR) - FutureLearnfuturelearn.com
SAR satellites fire a wide beam of radio waves at the Earth, at an angle as they orbit. This keeps any one part of the Earth's surface in view over an extended ...
What is SAR Imagery? Guide to Synthetic Aperture Radar - JOUAVjouav.com
By emitting radar waves and processing the reflected signals, SAR systems create detailed images of the Earth's surface, regardless of weather ...
Synthetic Aperture Radar Doppler Tomography Reveals ...arxiv.org
by F Biondi · 2022 · Cited by 31 — Authors:Filippo Biondi, Structure of the Great Pyramid of Giza, by Filippo Biondi ・ describes an imaging method based on the analysis of micro ...
Underground Structures in Giza?skeptic.com
Underground Structures in Giza? A team led by Corrado Malanga from the University of Pisa and Filippo Biondi from the University of Strathclyde ...
Journal retracts paper claiming network of corridors inside ...retractionwatch.com
The Italian team is not just using Synthetic Aperture Radar on its own, they are using a unique SAR Doppler tomography that professor Biondi ...
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