in this paper, the detection of moving targets in airborne widely separated phased multiple input multiple output (mimo) radars which are located on moving platform is investigated. in order to derive the detector, the generalized likelihood ratio test is applied. the proposed detection rule, exploits the clutter subspace information and its maximum likelihood estimation, to improve the detecti...

Existing OPAs are typically based on 2D rectangular arrays or 1D linear arrays. Both approaches present a limited field-of-view (FOV) due to the presence of grating lobes when element spacing is larger than λ/2. To address need for an increased steering range, we propose new design strategy OPA system utilizing circular phased array, with substantially FOV. We using demonstrated antenna design,...

According to European Standard EN 1712 ultrasonic testing of thin-walled welded joints is mandatory for wall thicknesses of more than 8 mm only. Any thinner components do have to undergo X-ray inspection. Besides various advantages of X-ray testing viz. high sensitivity to smallest inclusions, high acceptance in the ship building sector and “automatic” documentation of inspection results, there...

PS*, a new sequential tree searching algorithm based on the State Space Search (SSS*), is presented. PS*(k) divides each MAX node of a game tree into k partitions, which are then searched in sequence. By this means two major disadvantages of SSS*, storage demand and maintenance overhead, are significantly reduced, and yet the corresponding increase in nodes visited is not so great even in the r...

Parallel imaging may be applied to cancel ghosts caused by a variety of distortion mechanisms, including distortions such as off-resonance or local flow, which are space variant. Phased array combining coefficients may be calculated that null ghost artifacts at known locations based on a constrained optimization, which optimizes SNR subject to the nulling constraint. The resultant phased array ...

Genetic algorithm for optimization of beam forming in linear array antenna is used. The goal is to achieve a -30 dB in the null of pattern with the capability of steering the null angle over the all frequency band. Our simulation shows a -30 dB up to -60 dB for this purpose. SPAA (Smart Phased Array Antenna) which is software for analysis, synthesis and simulation of adaptive phased array anten...

Financial inclusion is a priority in most developing countries. While the inclusion approaches may differ, the primary aim remains enrolling the unbanked into the formal economy. This paper adopts Critical Realism as a lens to compare the efforts of two inclusion models; M-PESA from Kenya and ezwich in Ghana. The findings reveal that while both models do not provide the infrastructure for peopl...

ii To the most beloved people in my life,