A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Tomographic imaging of bridge decks using radar
Rapid, accurate, nondestructive and non-disruptive inspection of reinforced concrete bridge decks is needed to effectively manage the Nation's network of highway bridges. A new approach to the application of ground penetrating radar for bridge deck inspection has been developed to meet this need. This new approach utilizes an array of very low power impulse radar to create a synthetic aperture which interrogates a 2 meter width of bridge deck, up to 30 cm deep. Inspection speeds of up to 90 kilometer per hour have been obtained. The data from the array, along with spatial registration data is digitized, stored and post processed to produce the tomograms. A time-focused, multi-frequency diffraction tomography imaging technique is used on the coherent backward propagation of the received reflected wavefield to form a spatial image of the scattering interfaces within the bridge deck. Two radar tomography imaging systems have been developed. The first is a slow speed, very high resolution, single element system and the second is a high speed, medium resolution array based system.
Tomographic imaging of bridge decks using radar
Rapid, accurate, nondestructive and non-disruptive inspection of reinforced concrete bridge decks is needed to effectively manage the Nation's network of highway bridges. A new approach to the application of ground penetrating radar for bridge deck inspection has been developed to meet this need. This new approach utilizes an array of very low power impulse radar to create a synthetic aperture which interrogates a 2 meter width of bridge deck, up to 30 cm deep. Inspection speeds of up to 90 kilometer per hour have been obtained. The data from the array, along with spatial registration data is digitized, stored and post processed to produce the tomograms. A time-focused, multi-frequency diffraction tomography imaging technique is used on the coherent backward propagation of the received reflected wavefield to form a spatial image of the scattering interfaces within the bridge deck. Two radar tomography imaging systems have been developed. The first is a slow speed, very high resolution, single element system and the second is a high speed, medium resolution array based system.
Tomographic imaging of bridge decks using radar
Tomographische Abbildung von Brückenbelägen mittels Radar
Chase, S.b. (author)
1999
4 Seiten
Conference paper
English
Tomographic Imaging of Bridge Decks Using Radar
| British Library Conference Proceedings | 1999
Radar tomography of bridge decks
| Tema Archive | 1998
Improved Ground-Penetrating Radar-Bridge Decks
| British Library Conference Proceedings | 1994
Ground-penetrating radar evaluation of bridge decks
| SPIE | 1995
Nondestructive Testing of Bridge Decks Using Dual Frequency Radar
| British Library Conference Proceedings | 1993