Target glint phenomenon analysis and evaluation of glint reduction techniques

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2012

Author

Bahtiyar, Selçuk

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In this thesis, target induced glint error phenomenon is analyzed and the glint reduction techniques are evaluated. Glint error reduction performance of the methods is given in a comparative manner. First, target glint is illustrated with the dumbbell model which has two point scatterers. This illustration of the glint error builds the basic notion of target scattering centers and effect of scattering characteristics on glint error. This simplest approach is also used to understand the glint reduction methods. In an effort to evaluate the glint reduction techniques, a model based upon the concept of coherent summation of scattering complexes is used . The model is also used for introducing the basic properties of glint phenomenon. Basics of the glint phenomenon and glint reduction techniques are discussed with particular emphasis on diversity methods. Frequency diversity and spatial diversity techniques are described and investigated with generated simulation data. The diversity selection methods which are used to eliminate the erroneous data are introduced and their performances are investigated. Glint error reduction results of various scenarios including both reduction techniques and selection methods are evaluated in comparison with each other. The results indicate that significant reduction of glint error is possible by the appropriate utilization of diversity techniques in radar systems.

Subject Keywords

Radar receiving apparatus., Radar, Radar, Radar confusion reflectors.

URI

http://etd.lib.metu.edu.tr/upload/12614679/index.pdf
https://hdl.handle.net/11511/21992

Collections

Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

S. Bahtiyar, “Target glint phenomenon analysis and evaluation of glint reduction techniques,” M.S. - Master of Science, Middle East Technical University, 2012.