Faisal F. H. Aldhubaib

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The E-pulse technique which typically uses transient scattering data from radar targets in free space is one of the most well known resonance based radar target recognition schemes on which target recognition is based. In this communication, the possibility of subsurface target recognition based on the E-pulse technique is investigated using numerical(More)
This paper proposes a radar target recognition algorithm based on a feature set extracted from the target characteristic polarization states (CPS) and evaluated at a set of target resonant frequencies in the frequency domain. The algorithm involves measuring the proximity between training (stored) prototypes and a test prototype. For this task, the(More)
The concept of characteristic polarization states (CPSs) is extended to an ultrawideband (UWB) context by a time-domain approach. This is achieved by a sparse representation of the target UWB temporal response by the singularity expansion model. The polarization description uses the complex residues and frequencies associated with each singularity mode to(More)
The concept of characteristic polarization states (CPSs) is extended to an ultrawideband (UWB) context. This is achieved by a sparse representation of the target UWB scattering spectrum by a set of frequency bands associated with the target natural resonance modes. The polarization description involves using the average power within each resonant frequency(More)
In this work, we introduce the concept of optimal bistatic angle such that the scattered radar target signal has a robust strength level irrespective of the target aspect. The concept involves statistically analyzing the scattering patterns as a function of the target aspect to a fixed and known incident radar direction. Henceforth, statistical quantities(More)
A physically based radar target scattering signature is derived from observable data using a frequency domain scattering model that incorporates the backscattered radar target polarization response at the target natural resonance frequencies (NRF). Two rotationally symmetric targets of simple but similar characteristic geometry are used to demonstrate the(More)
Under different excitation bandwidth, the number of the resonant modes that will be excited from the radar target will be different. As a result, different numbers of resonant modes will be involved in the target recognition process and the performance of target recognition may also be affected. The objective of this paper is to study how the variations of(More)
In resonance based target recognition, studies have mainly been focus on exploiting the natural resonant modes embedded in an ultra wideband transient signature measured at a specific aspect and polarization state. The information that carries in polarimetric and aspect dependency nature of the scattering phenomena has not been well exploited. The objective(More)
The polarization dependent nature of ultra wideband (UWB) scattering from a radar target is studied using time-frequency (TF) analysis. The UWB frequency responses of the target under linear and circular polarization incidence are studied. The results demonstrate that the Q-factor of the resonant peaks vary as the incident polarization changes, indicating(More)