Abstract
Phased Array (PA) uses a single focus in emission and Dynamic Depth Focusing (DDF) in reception, while Total Focusing Method (TFM) focuses every image pixel in emission and in reception. By contrast, TFM lacks the A-scan information, which is standard in PA and can be very useful for evaluation. Another issue common to both techniques is the difficulty associated with two media propagation and unknown interface geometry. A further TFM drawback is the limited image extent due to memory and time consumption. This work addresses these problems by proposing the new Total Focus Phased Array (TFPA) technique that combines the advantages of PA and TFM. TFPA builds A-scan lines as in PA, but focused in emission and in reception at all depths. This process is achieved in real-time by N+1 focusing hardware blocks that do not limit the length of every A-scan. Furthermore, TFPA can operate with the Virtual Array concept that avoids the problems of refraction in two propagation media applications. TFPA has many advantages: A-scan information is preserved, image is focused in emission and in reception, moderate complexity with real-time capability, no refraction issues and no limit on the depth or the number of pixels/samples in the image.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
