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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
181

Är Mjukvaru-EQ:s så bra som utvecklarna lovar? : En jämförelse av hårdvaru- och mjukvaru-EQ:s

Rinman, Jakob January 2014 (has links)
I denna uppsats undersöks skillnaden mellan EQ:s som analog hårdvara och dess digitala motsvarigheter, dvs. emuleringar i pluginformat. I uppsatsen undersöks enheterna genom tekniska mätningar samt lyssningstest. I mätningarna gick det att se tydliga skillnader i övertonsdistortionen även om resterande parametrar var bra emulerade. I lyssningstesten uppfattade lyssningspanelen relativt stora skillnader mellan enheterna. Detta visar på att emuleringarna inte är så bra och exakta som utvecklarna påstår.
182

Design and Implementation of a Multi-Channel Field-Programmable Analog Front-End For a Neural Recording System

Ebrahimi Sadrabadi, Bahareh January 2014 (has links)
Neural recording systems have attracted an increasing amount of attention in recent years, and researchers have put major efforts into designing and developing devices that can record and monitor neural activity. Understanding the functionality of neurons can be used to develop neuroprosthetics for restoring damages in the nervous system. An analog front-end block is one of the main components in such systems, by which the neuron signals are amplified and processed for further analysis. In this work, our goal is to design and implement a field-programmable 16-channel analog front-end block, where its programmability is used to deal with process variation in the chip. Each channel consists of a two-stage amplifier as well as a band-pass filter with digitally tunable low corner frequency. The 16 recording channels are designed using four different architectures. The first group of recording channels employs one low-noise amplifier (LNA) as the first-stage amplifier and a fully differential amplifier for the second stage along with an NMOS transistor in the feedback loop. In the second group of architectures, we use an LNA as the first stage and a single-ended amplifier for implementing the second stage. Groups three and four have the same design as groups one and two; however the NMOS transistor in the feedback loop is replaced by two PMOS transistors. In our design, the circuits are optimized for low noise and low power consumption. Simulations result in input-referred noise of 6.9 ??Vrms over 0.1 Hz to 1 GHz. Our experiments show the recording channel has a gain of 77.5 dB. The chip is fabricated in AMS 0.35 ??m CMOS technology for a total die area of 3 mm??3 mm and consumes 2.7 mW power from a 3.3 V supply. Moreover, the chip is tested on a PCB board that can be employed for in-vivo recording.
183

Skönlitterär fritidsläsning - digital eller analog? : En studie av hur elever på grundskolans senare år förhåller sig till digitala texter respektive analoga texter

Johansson, Jenny January 2015 (has links)
Syftet med denna studie är att undersöka elevers fritidsläsning och om elever föredrar digital eller analog läsning och vad de tror om läsningen i framtiden. Studien kommer även att ge svar på vem som rekommenderar skönlitteraturen. Studien är en kvantitativ undersökning där data samlats in genom 59 enkäter. Resultatet visar att ungefär hälften av eleverna läser på fritiden och populärast var analog läsning. Eleverna föredrar även pappersböcker framför e-böcker och det är oftast familjemedlemmar som rekommenderar litteraturen. Slutsatserna av undersökningen är att pappersböcker även fortsättningsvis kan förväntas ha ett egenvärde i fritidsläsningen, och att det stora mediautbudet inte påverkat fritidsläsningen på ett negativt sätt. Vem som rekommenderar litteraturen till högstadieeleverna har förändrats över tiden. Förr var bibliotek mest förekommande och nu är det familjemedlemmarna.
184

The distribution of good multipliers for congruential random number generators.

Klincsek, Julia January 1973 (has links)
No description available.
185

A survey on continuous-time [delta sigma] modulators : theory, designs and implementations /

Gao, Xiaoran. January 2008 (has links)
Thesis (M.S.)--Oregon State University, 2008. / Printout. Includes bibliographical references (leaves 105-122). Also available on the World Wide Web.
186

A self-calibrating low power 16-bit 500KSps charge-redistribution SAR analog-to-digital converter

Upadhyaya, Prasanna, January 2008 (has links) (PDF)
Thesis (M.S. in electrical engineering)--Washington State University, August 2008. / Includes bibliographical references (p. 60-61).
187

A jittered-sampling correction technique for ADCs

Tourabaly, Jamil A. January 2008 (has links)
Thesis (M.EngSc. )--Edith Cowan University, 2008. / Submitted to the Faculty of Computing, Health and Science. Includes bibliographical references.
188

The design of transmitter/receiver and high speed analog to digital converters in wireless communication systems a convex programming approach /

Zhao, Shaohua, January 2008 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2009. / Includes bibliographical references (leaves 155-165) Also available in print.
189

Techniques for improving timing accuracy of multi-gigahertz track/hold circuits /

Wang, Jingguang. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2009. / Printout. Includes bibliographical references (leaves 55-57). Also available on the World Wide Web.
190

High speed data converter circuits in SI-GE

Robinson, Dirk J., January 2008 (has links) (PDF)
Thesis (Ph. D.)--Washington State University, December 2008. / Title from PDF title page (viewed on Jan. 15, 2009). "School of Electrical Engineering and Computer Science." Includes bibliographical references (p. 60-61).

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