Title :
Multiresolution detection of coherent radar targets
Author :
Gorman, John D. ; Subotic, Nikola S. ; Thelen, Brian J. ; Collins, Leslie
Author_Institution :
Environ. Res. Inst. of Michigan, Ann Arbor, MI, USA
Abstract :
Examines the problem of detecting a known target in clutter and shows that a multiresolution-based detector significantly outperforms a more conventional single-resolution detector. The authors then apply a sampling strategy that allows one to choose, for each fixed n, those n resolutions that maximize detection performance. This optimal multiresolution sampling strategy suggests that wavelet or wavelet packet decompositions which typically use dyadic or triadic resolution splits are not necessarily optimal bases for coherent radar signature representation
Keywords :
image representation; image resolution; image sampling; optimisation; radar clutter; radar detection; radar imaging; synthetic aperture radar; bases; clutter; coherent radar signature representation; coherent radar targets; detection performance; dyadic resolution splits; multiresolution detection; multiresolution-based detector; resolutions; sampling strategy; triadic resolution splits; wavelet decompositions; wavelet packet decomposition; Clutter; Detectors; Image resolution; Image sampling; Radar cross section; Radar detection; Radar imaging; Radar scattering; Spatial resolution; Wavelet packets;
Conference_Titel :
Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference
Conference_Location :
Austin, TX
Print_ISBN :
0-8186-6952-7
DOI :
10.1109/ICIP.1994.413353