DocumentCode :
2174533
Title :
Symbolic match hypothesis evaluation for UHRR radar targets
Author :
Fister, Tom
Author_Institution :
Veda Inc., Dayton, OH, USA
fYear :
1994
fDate :
23-27 May 1994
Firstpage :
696
Abstract :
The work described in this paper deals with a non-parametric technique for target recognition. This method makes no assumptions about the underlying statistical processes for the data. Processing of the unknown targets begins with a structural analysis of the radar scattering centers making up the radar signature. The energy, location, and width of the scattering centers are parameterized. This symbolic description is then used to represent each target. The unidentified symbolic list is then used in the comparison process between known preprocessed templates and the unknown object in question. The hypothesis evaluation focuses upon comparing similar scattering centers between the unknown object and the known templates using proximity constraints. A match confidence estimate is computed for each hypothesis based upon scattering center non-correspondences, energy differences, and matched location offsets. The original work was created using Mathematica and was designed for SAR imagery. The code has since been modified to handle UHRR data and has been converted into Khoros, the visual programming system
Keywords :
feature extraction; radar applications; radar cross-sections; signal processing; symbol manipulation; visual programming; Khoros; UHRR radar targets; energy; energy differences; location; match confidence estimate; matched location offsets; nonparametric technique; radar scattering centers; radar signature; scattering centers; similar scattering centers; statistical processes; structural analysis; symbolic description; symbolic match hypothesis evaluation; target recognition; unidentified symbolic list; visual programming; Character recognition; Data mining; Focusing; Image converters; Libraries; Probability density function; Radar scattering; Scattering parameters; Search methods; Target recognition;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Aerospace and Electronics Conference, 1994. NAECON 1994., Proceedings of the IEEE 1994 National
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-1893-5
Type :
conf
DOI :
10.1109/NAECON.1994.332843
Filename :
332843
Link To Document :
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