Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Mohan Chirala"'
Publikováno v:
Advances in Science, Technology and Engineering Systems, Vol 3, Iss 4, Pp 59-71 (2018)
This paper presents a resource-friendly dynamic digital beamformer for a portable ultrasound imaging system based on a single field-programmable gate array (FPGA). The core of the ultrasound imaging system is a 128- channel receive beamformer with fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f39014af7150b6184613b8176cdf1e51
https://astesj.com/v03/i04/p08/
https://astesj.com/v03/i04/p08/
Publikováno v:
EMBC
This paper reports a massively integrated Δ-Σ ADC based mixed signal chipset for a handheld Wireless Ultrasound imaging system. The IC has been fabricated in a standard 0.13 μm 1.5V 7M2F CMOS process with 128 parallel channels containing Delta-Sig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c72d8486721b61cb8c905d9cd63041f
https://doi.org/10.1109/embc.2015.7318616
https://doi.org/10.1109/embc.2015.7318616
Publikováno v:
Proceedings of Meetings on Acoustics.
Ultrasound speckle tracking (ST) provides robust estimates of fine tissue displacements along the beam direction due to the analytic nature of echo data. A multi-dimensional ST method (MDST) with subsample accuracy in all dimensions is introduced. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8736dd76828b709175afd3f7fee6d465
https://doi.org/10.1121/2.0000022
https://doi.org/10.1121/2.0000022
Publikováno v:
BioCAS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35c737edaa238b4457d1ac25a86fe9d5
https://doi.org/10.1109/biocas.2014.6981809
https://doi.org/10.1109/biocas.2014.6981809
Publikováno v:
EMBC
We present a resource-optimized dynamic digital beamformer for an ultrasound system based on a field-programmable gate array (FPGA). A comprehensive 64-channel receive beamformer with full dynamic focusing is embedded in the Altera Arria V FPGA chip.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::425169fe5b06672d5245fefc35860d8d
https://doi.org/10.1109/embc.2014.6944327
https://doi.org/10.1109/embc.2014.6944327
Publikováno v:
2013 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).
We present the design and development of the first fully integrated, two stage Doherty power amplifier (DPA) in the Ka-Band. The DPA is fabricated in a 0.15-μm GaAs pseudomorphic high electron mobility transistor (pHEMT) process. At 26.4 GHz, the am
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3d179eb72c8b8ea5376c06c4faeba18
https://doi.org/10.1109/rfic.2013.6569601
https://doi.org/10.1109/rfic.2013.6569601
Publikováno v:
ICASSP
The traditional Nyquist sampling architecture does not provide a feasible solution in a large multi-channel ultrasound imaging system. The main issues are the huge data volume after the analog-to-digital interface, high power consumption, and circuit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c151a985f71232c73ad78f78f17cb7e
https://doi.org/10.1109/icassp.2013.6637811
https://doi.org/10.1109/icassp.2013.6637811
Publikováno v:
SPIE Proceedings.
The goal of this paper is to investigate and evaluate image quality, based on quality metrics and visual perception in ultrasound imaging under different imaging conditions. We first generate and simulate Bmode ultrasound images of various objects, u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d805315cb088f34f7c60ff332de0c60
https://doi.org/10.1117/12.2007050
https://doi.org/10.1117/12.2007050
Publikováno v:
2011 IEEE International Symposium on Antennas and Propagation (APSURSI).
A ultra-small distributed low noise amplifier was developed in a standard JAZZ 0.18-μm RF/mixed signal CMOS process. The 3-stage distributed amplifier occupies just 288 x 291 ?m or 0.08 mm2 of die area, making it the smallest distributed amplifier r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84c6e1a16ddda909bf394c3daf733000
https://doi.org/10.1109/aps.2011.6058707
https://doi.org/10.1109/aps.2011.6058707