Title	Performance Evaluation in a Radar System
Author	Ahmed Alsheikhy, Muhannad Almutiry
Citation	Vol. 18  No. 11  pp. 116-126
Keywords	Hierarchical Performance Model (HPM), Response time evaluation, Scatters sidelobes, Radar tomography, Framework, Inverse problem, Radio frequency.

Title	Using Hierarchical Performance Modeling to Determine Bottleneck in Pattern Recognition in a Radar System
Author	Ahmed Alsheikhy and Muhannad Almutiry
Citation	Vol. 22  No. 3  pp. 292-302
Keywords	hierarchical performance modeling, bottlenecks, tomographic images, radar systems, single layer perceptron.