1990 IEEE Ultrasonics Symposium

Paper presented at the IEEE International Ultrasonics Symposium , Lake Tahoe , USA , 1999 : Recursive Ultrasound Imaging

This paper presents a new imaging method, applicable for both 2D and 3D imaging. It is based on Synthetic Transmit Aperture Focusing, but unlike previous approaches a new frame is created after every pulse emission. The elements from a linear transducer array emit pulses one after another. The same transducer element is used after Nxmt emissions. For each emission the signals from the individua...

Ieee Vlsi Test Symposium

A new Imaging Science Phantom for Performance Evaluation of Ultrasonic Imaging Systems - Ultrasonics Symposium, 1995. Proceedings., 1995 IEEE

We have developed a phantom manufactured with thin film techniques that enables precise placement of sub-resolvable "digital scatterers" on an acoustically transparent supporting medium within the scan plane of an ultrasound system. This technique permits formation of sophisticated test targets commonly used in imaging science. These phantoms can reveal the combined influence of all the stages ...

AAAI 1990 Spring Symposium Series Reports

The American Association for Artificial Intelligence held its 1990 Spring Symposium Series on March 27–29 at Stanford University, Stanford, California. This article contains a short summary of seven of the nine symposia that were conducted (reports were unavailable for the symposia Planning in Uncertain, Unpredictable, and Changing Environments and The Theory and Application of Minimal-Length E...

2006 IEEE Radio and Wireless Symposium

This paper studies the influence, estimation and digital compensation of IQ imbalance at both transmitter and receiver side of a multiple-input multiple-output (MIMO) OFDM system. Hereto a preamble is designed, which enables simultaneous estimation of the channel and imbalance parameters. New estimation approaches for TX, RX and joint TX and RX IQ imbalance in MIMO OFDM systems are proposed and...