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2187 Uppsatser om Digital Signal Processing - Sida 4 av 146
Digitala kommunikationer mellan VIDA och deras leverantörer
The Swedish forest industry has put a lot of resources in the development of digital communications in hopes of improving collaboration with suppliers. The purpose of this study was to investigate whether VIDA would benefit from using digital communication with suppliers.
The survey was conducted as a questionnaire study among the company?s staff and its suppliers. The result indicated needs and interests to use digital communications in both groups. Young suppliers and suppliers on a distance showed the most interest in using digital communication.
In terms of using these digital communications, the staffs and suppliers were most interested in information regarding transaction and forestmanagement plans.
Från digitalt utanförskap till digital gemenskap : En hypotetisk väg till digital gemenskap
We are in an emerging digital society where we are increasingly dependent on the mastery of IT and digital technologies to better carry out our everyday tasks. They cover everything from keeping in touch with family and friends to pay bills and declare. At the same time there are those who have not learned how to use the new technology and live their lives outside of the digital society. What happens to these people, in a society that is becoming increasingly digitized? Do they take harm by being in digital exclusion? It looks like this are issues that will not become less important as digital technology constantly changes.
Digitizing the Parthenon using 3D Scanning : Managing Huge Datasets
Digitizing objects and environments from real world has become an important part of creating realistic computer graphics. Through the use of structured lighting and laser time-of-flight measurements the capturing of geometric models is now a common process. The result are visualizations where viewers gain new possibilities for both visual and intellectual experiences. This thesis presents the reconstruction of the Parthenon temple and its environment in Athens, Greece by using a 3D laser-scanning technique. In order to reconstruct a realistic model using 3D scanning techniques there are various phases in which the acquired datasets have to be processed.
Shape from Silhouette Scanner
The availability of digital models of real 3D objects is becoming more and more important in many different applications (e-commerce, virtual visits etc). Very often the objects to be represented cannot be modeled by means of the classical 3D modeling tools because of the geometrical complexity or color texture. In these cases, devices for the automatic acquisition of the shape and the color of the objects (3D scanners or range scanners) have to be used. The scanner presented in this work, a Shape from silhouette scanner, is very cheap (it is based on the use of a simple digital camera and a turntable) and easy to use. While maintaining the camera on a tripod and the object on the turntable, the user acquires images with different rotation angles of the table.
Kunskap, Färdighet och Attityd : En undersökning om grundskolebibliotekariers syn på och arbete med digital kompetens
There is little doubt that the digital technology has played a major role in reshaping the ways in which we experience the world. In a few decades the Internet has become a vast repository for knowledge and ideas. New arenas where people may meet and fraternize have emerged, and with the help of various digital tools and websites, the production of new material has increased to an almost unfathomable level.But all is not well on the digital front. As the Internet has become a crucial part of our everyday life, certain skills in handling digital media has become very important to master. A well-developed ability to navigate through this ocean of information is needed, and knowledge in managing the risky nature of the internet is critical.
Digital videoväxel
This thesis discusses the possibilities to distribute digital video in a military vehicle. Today, an analogue system is used, which has a maximum capacity of eighteen video sources and the same number of monitors. The purpose of this thesis is to increase the systems capabilities regarding secure distribution and additional functions. Both software and hardware tests are made to investigate the features of the digital video standard MPEG-2. Both the coding delay and the image quality are of great interest.
Konstruktion Signalgenerator
SAAB Aerotech division FGR in Arboga builds and develops equipment and components used in both military and civilian applications. To build a test system for a specific project that SAAB is responsible for requires a simple signal generator that can provide a pulse modulated signal. The need to buy a new advanced signal generator for example from Agilent is not as profitable as the instrument is expensive and contains features that SAAB does not require in their applications and test systems. That was the reason why SAAB offers two students a thesis where the goal is to construct a signal generator in accordance with what SAAB requests.This thesis contains several different phases. The first step was a meeting with our supervisor Mats Bergman and by reading the data sheets for components to be used in the project, with these information and specifications that we have received from SAAB we started to construct the signal generator.What we did during the construction work was to simulate and draw a schematic to be able to design the circuit board.
Malmös digitala klyfta
Differences between groups or individuals in a society with regards to access to information and communication technologies (ICTs) are known as the digital divide. The digital divide pertains to differences in physical access to computers and the Internet as well as knowledgein using technology. Important factors affecting the digital divide are disabilities, age, gender, socioeconomical background, ethnicity and geography. The digital divide appears on several levels: internationally, nationally, regionally and locally. Individuals who, for some reason, have limited or no access to information and communication technologies risk, among other things, to experience social exclusion.
Aktiv bullerdämpning i entreprenadmaskin
En mätserie utfördes på en entreprenadmaskin där entreprenadmaskinen var en
tandemvält. Data som spelades
in på en DAT-bandspelare var motorns rotationsfrekvens, valsarnas vibrationer
samt ljudfältet i kabinen.
Den insamlade datamängden analyserades m.a.p dess spektra samt ljudnivåer.
Vidare predikterades resultat till
implementering av det adaptiva systemet ur dessa insamlade data. Viss
laboration utfördes på en modell av det
adaptiva systemet m.h.a insamlade data.
Paketering av digital musik: Intervjuer med nyckelpersoner inom digital musik i Sverige
This exploratory thesis uses qualitative research to investigate how digital music is beeing packaged. The main study consists of 11 deep interviews with key representatives of the digital music industry in Sweden. These are (record companies) EMI, SonyBMG, Universal, Warner, (DSP) InProdicon, (mobile operators) 3, TeliaSonera and (cell phone producer) SonyEricsson. Packaging is a concept of marketing that has specific implications depending on which good or service that is being packaged. Packaging occurs at different levels in the production chain.
Knacksensorplacering på lastbilsmotor
This work is an experimental study where knock sensor placements are investigated using engine tests. The aim is to studythe quality of the signal from knock sensors and how the signal for engine control is affected at different sensor locations on Scanias, engine DC13. To find out at witch position on the engine youcan get a usable signal for engine control, the engine is running while the knock sensors with advanced measurement equipment is connected to the engine. Evaluation of signals from the knock sensors are made in the computer program Matlab. The program is producing a seriesof plots, from these plots it is visually possible to draw conclusions and find connections.
Digitala bibliotek - framtidsvision eller morgondagens verklighet?
In the wake of the electronic revolution digital library has become one of the central themes concerning libraries. The present study takes up the question whether digital library can function in the same way as the conventional library. The question can obviously be posed from different perspectives, e.g. technological-, the user-, or the organizational perspective. The study investigates if (and how) digital library can have the same functions as the traditional library.
ADS och Matlab för optimering av pre-distortion av effektförstärkare
This master?s thesis deals with integrating simulations using Agilents Electronic Design Automation tool ADS with customized Matlab scripts, for solving complex analog and digital radio architectures. In particular, it addresses predistortion, realized in the digital domain, of power amplifiers, modeled in the analog domain. The former is implemented in Matlab while the latter is implemented in ADS. Two versions of integrating the two systems have been tested: 1) Iterative approach on sample basis and 2) Scheduled batch solution by matrix inversion.
Digital Humaniora Pedagogik : Digitalisering av text och konsekvenser för lärande
Den här studien undersöker hur förutsättningar för lärande förändras genom digital humanities.Utgångspunkt för lärande hämtas ur designteoretiskt multimodalt perspektiv. Teoretiskutgångspunkt för att uppnå förståelse inom digital humanities är hermeneutisk teori. Studien hargenomförts med den öppna metoden litteraturanalys och analyserar antologin DigitalHumanities Pedagogy: Principles, Practices, Politics. Studien belyser digital humanities utifrånolika kunskapsskapande aktiviteter inom lärande och hur lärande kan främjas genom digitalaverktyg och inlärningsmiljöer. Studien belyser exempel på hur digital humanities ställer nyakrav på undervisning och den lärande samt att digitala öppna universitet med fri tillgång tillmaterial och undervisning, förändrar förutsättningarna för institutioner..
Digital kommunikation i förskolan : En kvalitativ fallstudie om hur digitala medier kan anvä?ndas fö?r kommunikation mellan hem och fö?rskola
This study aims to research how digital media can be used for communication and information management between teachers at preschools and children?s homes. To get an understanding of this we have investigated which channels are being used and for what purposes. The interest has also been to explore preschool teachers and caregivers? attitudes towards digital communication in preschools.A qualitative case study of comparative nature has been conducted, where two preschools were selected because of their use and non-use of digital media for communication with caregivers.