Open AccessReport on ghosting in LL94 RAR data
Author(s) -
Sean K. Lehman
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/212539
Subject(s) - ghosting , relation (database) , range (aeronautics) , computer science , artificial intelligence , engineering , database , aerospace engineering
Ghosting in the Loch Linnhe 1994 (LL94) real aperture radar (RAR) data is the phenomenon of two range cells with high returns separated by two range cells with lower returns. The occurrence of ghosting is sporadic, there appears to be no relation between the value of the high returns, and there appears to be no relation between ghosting in the I (real) and Q (imaginary) parts of a range line. It was believed ghosting was due to a byte shift in the data. It only appears in data processed with the Livermore RAR codes. The authors present the steps used in diagnosing the problem, the eventual determination of the cause, and the solution