Imaging of a 2D object requires reflected wave data to be collected across two distinct dimensions. In this paper, we propose a reconstruction method that uses ...Patole, S.Torlak, M.IEEE transactions on image processingS. Patole and M. Torlak. Two dimensional array imaging with beam steered...
Phased array ultrasonic testing (PAUT) is an ultrasonic imaging detection technology that implements functions such as ultrasonic beam movement, deflection, and focusing by applying different time delay rules, that is, the focal law, to different units of the transducer array when emitting or receivin...
2D phased arrays possess the additional advantage of steering the generated ultrasound beam in three dimensions at arbitrary focal lengths, which can be used for detailed localized imaging2,3. Among many imaging applications, ultrasound has been demonstrated as a viable modality to help diagnose bone ...
Arrays provide flexibility not possible with solid apertures. By the control of the delay and weighting of each element of an array, beams can be focused electronically at different depths and steered or shifted automatically. Lateral resolution and beam-shaping can also be changed through adjustment...
If a source existed at the angle occupied by point D, then point A would indicate the gain with which the system would process that source. [0019] One problem with beam-steered systems is that a noise source, such as an air conditioner or idling delivery truck, can exist within the ...
Josaphat Tetuko Sri SumantyoBaharuddin, M. Z. and J. T. S. Sumantyo, "Suppressed side-lobe, beam steered, C-band circularly polarized array antenna for airborne synthetic aperture radar," The Journal of Unmanned System Technology, Vol. 4, No. 1, 2016....
[Bitluni] walks through an excellent explanation of how the array works with a bucket of water and his finger, as well as a separate simulation. By changing the phase offset of the different array members, the beam can effectively be steered as interference muffs the undesired waves. Using a...
If prearranged phase delays are introduced in the firing of the signals of individual array elements, then the constructive interference beam can be steered to difference angular positions. Thus, an azimuth and elevation sweep can be achieved without mechanical rotation of the radar platform. The ...
A planar, ray-imaging, electronically steered array antenna, whose radiating array elements are disposed on a planar surface above an electrically conductive ground plane that enhances the antenna gai
et al., “Adaptive Multi-element Synthetic Aperture Imaging with Motion and Phase Aberration Correction,” IEEE Transactions on Ferroelectrics, and Frequency Control, Jul. 1998, 45(4), 1077-1087. Karaman, M. et al., “VLSI Circuits for Adaptive Digital Beamforming in Ultrasound Imaging,” ...