Computer Science – Sound
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsm13a0353m&link_type=abstract
American Geophysical Union, Fall Meeting 2006, abstract #SM13A-0353
Computer Science
Sound
2194 Instruments And Techniques, 2494 Instruments And Techniques, 2794 Instruments And Techniques, 5494 Instruments And Techniques, 6994 Instruments And Techniques (1241)
Scientific paper
An orbital or ballistic platform employing a rotating field of view is being developed for atmospheric tomography. A particular target is ionospheric sounding with potential applications in navigation, communication, and radio astronomy. The rotating field of view combined with a tomographic reconstruction algorithm will provide a high-resolution image across a plane of the atmosphere using measurements from a single sounding instrument. The tomographic reconstruction method is based upon the natural pixel representation. In this formulation, image reconstruction requires solution of a large nonsparse set of equations involving a Grammian matrix whose elements depend upon the geometry of the orbit and region being imaged. We present detailed discussion of how to stably compute the elements of the Grammian matrix and an efficient algorithm for reconstructing the image from the projection heights. Results on simulated data indicating spatial resolution and contrast will be presented.
Moon Todd K.
Swenson Charles Merrill
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