VLSI circuits for adaptive digital beamforming in ultrasound imaging

VLSI circuits for adaptive digital beamforming in ultrasound imaging

For phased-array ultrasound imaging, alternative beamforming techniques and their VLSI circuits are studied to form a fully digital receive front-end hardware. In order to increase the timing accuracy in beamforming, a computationally efficient interpolation scheme to increase the sampling rate is examined. For adaptive beamforming, a phase aberration correction method with very low computation...

Adaptive beamforming in row-column addressed arrays for 3D ultrasound imaging

In recent years, to reduce the complexity of implementation, the use of 2D arrays with restricted row-column addressing has been considered for 3D ultrasound imaging. In this paper, two methods of adaptive beamforming based on the minimum variance method are represented in such a way that the computational load is much less than using the full adaptive beamforming method. In both proposed metho...

A Digital Metastability Model for VLSI Circuits

PhD Thesis A Digital Metastability Model for VLSI Circuits PhD candidate Thomas Polzer Reviewers Ao. Univ.-Prof. Dipl.-Ing. Dr. techn. Andreas Steininger Prof. Alex Yakovlev, PhD, DSc This thesis develops a digital model for predicting failure rates caused by marginal triggering, so called metastability, of CMOS storage elements. To derive the underlying model, various storage elements are simu...

Novel Method of Realization of Scalable VLSI Adaptive Digital Beamforming Architecture for Phased Array Radar

This This paper describes a novel method for the hardware Design and realization of adaptive filter for the application of Adaptive Digital beam former suitable for FPGAs. The planar phased array configuration considered in this case is sixteen element array. Design approach followed is modular design and each one of the modules is reused to make the sixteen element planar array configuration. ...

Ground bounce in digital VLSI circuits