Passive body-wave interferometric imaging with directionally constrained migration
نویسندگان
چکیده
منابع مشابه
Interferometric imaging condition for wave-equation migration
The fidelity of depth seismic imaging depends on the accuracy of the velocity models used for wavefield reconstruction. Models can be decomposed in two components corresponding to large scale and small scale variations. In practice, the large scale velocity model component can be estimated with high accuracy using repeated migration/tomography cycles, but the small scale component cannot. There...
متن کاملPassive millimeter-wave imaging with compressive sensing
Passive millimeter-wave (PMMW) imagers using a single radio-meter, called single pixel imagers, employ raster scanning to produce images. A serious drawback of such a single pixel imaging system is the long acquisition time needed to produce a high-fidelity image, arising from two factors: (a) the time to scan the whole scene pixel by pixel and (b) the integration time for each pixel to achieve...
متن کاملPassive millimeter-wave imaging with compressive sensing
Passive millimeter-wave (PMMW) imagers using a single radiometer, called single pixel imagers, employ raster scanning to produce images. A serious drawback of such a single pixel imaging system is the long acquisition time needed to produce a high-fidelity image, arising from two factors: (a) the time to scan the whole scene pixel by pixel and (b) the integration time for each pixel to achieve ...
متن کامل3D wave-equation interferometric migration of VSP multiples
For VSP data, interferometric migration of free-surface multiples has two significant advantages over standard VSP migration: 1). a significantly larger imaging area than that of conventional migration of VSP primaries, and 2). less sensitivity to velocity and static errors than conventional migration of VSP multiples. In this report we validate these claims by applying wave-equation interferom...
متن کاملPassive Millimeter-Wave Imaging for Security
How It Works Unlike X-Ray systems with their ionizing radiation, and active Microwave systems which bathe the subject in RF, passive millimeter-wave (PMMW) imaging systems read the natural thermal energy in environment, much like an infrared camera. Unfortunately, infrared wavelengths are too short to pass through clothing, so we choose a longer wavelength of 3 millimeters (specifically 80 to 1...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 2018
ISSN: 0956-540X,1365-246X
DOI: 10.1093/gji/ggy306