Title:
On processing line graphs: understanding aging and the role of spatial and verbal resources

dc.contributor.advisor Rogers, Wendy A.
dc.contributor.author Fausset, Cara Bailey en_US
dc.contributor.committeeMember Fisk, Arthur D.
dc.contributor.committeeMember Walker, Bruce
dc.contributor.department Psychology en_US
dc.date.accessioned 2008-09-17T19:24:35Z
dc.date.available 2008-09-17T19:24:35Z
dc.date.issued 2008-07-09 en_US
dc.description.abstract The objective of this research is to explore high-speed analog-to-digital converters (ADCs) using silicon-germanium (SiGe) heterojunction bipolar transistors (HBTs) for wireless digital receiver applications. The stringent requirements of ADCs for the high-performance next-generation wireless digital receiver include (1) low power, (2) low cost, (3) wide input signal bandwidth, (4) high sampling rate, and (5) medium to high resolution. The proposed research achieves the objective by implementing high-performance ADC's key building blocks and integrating these building blocks into a complete sigma-delta analog-to-digital modulator that satisfies the demanding specifications of next-generation wireless digital receiver applications. The scope of this research is divided into two main parts: (1) high-performance key building blocks of the ADC, and (2) high-speed sigma-delta analog-to-digital modulator. The research on ADC's building blocks includes the design of two high-speed track-and-hold amplifiers (THA) and two wide-bandwidth comparators operating at the sampling rate > 10 GS/sec with satisfying resolution. The research on high-speed sigma-delta analog-to-digital modulator includes the design and experimental characterization of a high-speed second-order low-pass sigma-delta modulator, which can operate with a sampling rate up to 20 GS/sec and with a medium resolution. The research is envisioned to demonstrate that the SiGe HBT technology is an ideal platform for the design of high-speed ADCs. en_US
dc.description.degree M.S. en_US
dc.identifier.uri http://hdl.handle.net/1853/24605
dc.publisher Georgia Institute of Technology en_US
dc.subject Graph comprehension en_US
dc.subject Aging en_US
dc.subject Line graphs en_US
dc.subject.lcsh Visual communication
dc.subject.lcsh Ability, Influence of age on
dc.subject.lcsh Charts, diagrams, etc
dc.subject.lcsh Graph theory
dc.title On processing line graphs: understanding aging and the role of spatial and verbal resources en_US
dc.type Text
dc.type.genre Thesis
dspace.entity.type Publication
local.contributor.corporatename College of Sciences
local.contributor.corporatename School of Psychology
relation.isOrgUnitOfPublication 85042be6-2d68-4e07-b384-e1f908fae48a
relation.isOrgUnitOfPublication 768a3cd1-8d73-4d47-b418-0fc859ce897d
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