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Title: An FPGA Implementation of a High Resolution Phase Shift Beamformer
Authors: Abche, Antoine 
Maalouf, Aldo
Ayoubi, Rafic 
Karam, Elie 
Alameddine, Abdulmonhem 
Affiliations: Department of Electrical Engineering 
Department of Computer Engineering 
Department of Electrical Engineering 
Department of Computer Engineering 
Keywords: Medical signal processing
Biomedical ultrasonics
Medical image processing
Subjects: Array signal processing
Field programmable gate arrays
Issue Date: 2007
Publisher: IEEE
Part of: ICSPC Dubai 2007 Proceeding
Conference: IEEE International Conference on Signal Processing and Communications (24-27 Nov. 2007 : Dubai, United Arab Emirates) 
In this work, an implementation of a high resolution phase shift beamformer on FPGA is presented. This implementation is based on the angle recording (AR) CORDIC algorithm and uses a fine precision 2-path floating point adder for an accurate computation of the phase shifts. A pipelined architecture is used to decrease the chip area requirements and to increase the throughput of the beamformer. The proposed approach is quantitatively evaluated by performing a comparison with am approach based on the Xilinx core generator modules. The results show that the proposed implementation outperforms the latter technique in terms of speed and area. The implemented beamformer could be used for acquiring 2D and 3D ultrasound medical images in real time.
Ezproxy URL: Link to full text
Type: Conference Paper
Appears in Collections:Department of Electrical Engineering

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