An Overview Algorithm to Minimise Side Lobes for 2D Circular Phased Array

Journal article


Mondal, S (2016). An Overview Algorithm to Minimise Side Lobes for 2D Circular Phased Array. NDT.net.
AuthorsMondal, S
Abstract

The report presents an algorithm called the total focusing method for the circular phased array. It shows an improvement in the focusing for the main lobe beam and eliminates the effects of the side lobe. The report visualizes the effects for different ring sizes of the circular array and the effect of different numbers of array elements. The results of this modelling indicate that, for a given number of elements, placing them around the circular ring allow them to perform best and that the element spacing should be less than half a wavelength to avoid grating lobes and to eliminate grating lobes. In addition to that it describes how the TFM images have been built by computing half time traces of the transmitter and receiver array.

KeywordsPhased array, ultrasonic beam focusing and total focusing method
Year2016
JournalNDT.net
PublisherNDT.net
ISSN1435-4934
Publication dates
Print01 May 2016
Publication process dates
Deposited05 Dec 2017
Accepted20 Apr 2016
Accepted author manuscript
License
File Access Level
Open
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https://openresearch.lsbu.ac.uk/item/87450

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