Geotomography methods are presented for reconstruction of an index-of-refraction distribution from time-delay measurements. Two versions of the algebraic reconstruction algorithm (ART) are compared to the conjugate residual (CR) algorithm with Lagrange multiplier conditioning. Refraction modeling is included in the reconstructions. Under noisy conditions, the CR algorithm gave superior results in comparison with both versions of ART. The conditioned CR is very stable with noise and accurately defines the anomaly boundaries.
|Original language||English (US)|
|Title of host publication||Digest - International Geoscience and Remote Sensing Symposium (IGARSS)|
|Place of Publication||New York, NY, USA|
|Number of pages||6|
|State||Published - 1987|
ASJC Scopus subject areas