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504 Uppsatser om Radio receiver - Sida 14 av 34
"Man vet inte vad man inte vet". En studie av informationsflödet inom Gatukontoret i Borås Stad
The aim of this thesis is to examine the flow of information in an administration of the municipality Borås Stad. To achieve the aim the following questions were asked: How accessible is information? How is information used in the organisation? How is information communicated? Totally sixteen qualitative interviews was accomplished with employees at the administration. The results of the interviews show that there is a difference in how much and what sort of information the respondents use. They all seem to prefer information to be communicated face to face if possible or over the phone.
Indoor Positioning Using WLAN
This report evaluates various methods that can be used to position a smartphone running the Android platform, without the use of any special hardware or infrastructure and in conditions where GPS is unavailable or unreliable; such as indoors. Furthermore, it covers the implementation of such a system with the use of a deterministic fingerprinting method that is reasonably device independent, a method which involves measuring a series of reference points, called fingerprints, in an area and using those to locate the user.The project was carried on behalf of Sigma, a Swedish software consulting company..
Utvärdering av en beslutsåterkopplad kanalestimator för tredje generationens mobiltelefonisystem
This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER).
Uterummet i undervisningen : en läromedelsanalys inom biologi
This paper describes Tempus Custode, a smartphone application with which the user may register working hours and travel time during the work day. The application communicates with a database via a server. The data stored in the database may be manipulated using an administrator tool, mainly for the composition of time reports. In this way, the user?s task of time reporting his day is greatly simplified.The application is able to automatically discriminate between work time and travel time, as it continuously fetches positioning data from the smartphone GPS receiver.
Utvärdering av en beslutsåterkopplad kanalestimator för tredje generationens mobiltelefonisystem
This Masters thesis work describes a comparison between two different methods
for estimation of the down channel (base station to mobile subscriber) in
Wide-band Code Division Multiple Access (WCDMA).
The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is
a conventional method that bases the estimates on data that is known to both
sender and receiver, so called pilots. The second method, Decision Directed
Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data
for estimation.
Simulations show that DDCE, in comparison to OFCE, does not attain an
improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER). An
improvement is only seen when the BER becomes much lower than what is common in
real situations.
In conclusion DDCE is complicated, involves many mathematical operations and
gives insignificant improvement of SNR when BER takes common values. It is
legitimate to question if it is possible to use the method in a real mobile
phone system..
Julia och eliterna : En studie av hur näthatsdebatten utvecklades till en medial lavin
English title: Julia and the elite. A study of how the Internet hatred developed into a media avalanche.Introduction: During February 2013 Swedish media flooded with news of online hate directed towards women after an episode of Uppdrag Granskning on SVT (2013). Female media profiles were given the opportunity to tell the entire Swedish population about the hate and threats they had been exposed to online. In this thesis we want to investigate what topics end up on the media´s agenda, how a piece of news is developed and framed.Questions: How does a piece of news considered highly newsworthy develop from when it first appears in the media until it gradually disappears? How and why did Internet hatred end up on the media´s agenda? How does the media framed the Internet hatred?Theory: To be able to answer the questions formulated in this thesis, the following theories have been used: Agenda-Setting theory, framing theory, news valuation and media logic. Method: Quantitative content analysis of news broadcasts and debate shows from TV, radio and newspapers.
Konst på internet idag : En retorikanalys av konstverksamma organisationers självpresentationer
This is a qualitative study about Art transformation and commodification in the digital age. The study applies a rhetoric analysis with the aim to understand how art sellers, gallery owners and entrepreneurs take part in this transformation process through their websites? presentation texts ?about us?. The analysis is related to communication theories but it is also inspired by other theories such as Gramsci?s hegemony theory and Bourdieu?s cultural critical theory.
Visualiseringsverktyg för röstkommunikation
Saab har utvecklat en produkt, Remote Tower, som tillåter flygledningen att fjärrstyra en flygplats, det vill säga att övervaka och kontrollera en flygplats på distans. Ett viktigt verktyg för flygledarna är VCS, Voice Communication System, som är Saabs egna röstkommunikationssystem, där både radio- och telefonkommunikation ingår. VCS används för att kommunicera med piloter och markpersonal på flygplatsen. Målet är att i framtiden kunna fjärrstyra fler flygplatser samtidigt, och då finns ett behov att visualisera de inkommande samtalen från de olika flygplatserna i realtid. Detta för att undvika ett scenario där flygledaren missar ett samtal.
Allmänhetens kunskap om afasi ? ett svenskt stickprov
The aims were to investigate the public awareness of aphasia in a Swedish sample and examine if knowledge of aphasia relates to gender, education or age. Participant?s sources of knowledge of aphasia were examined. A total of 153 individuals, aged 18-90, were surveyed. Participants were categorized into three groups; heard of, knowledge of and not heard of aphasia.
Användargränssnitt för taltidningar.
Taltidningen är en inläst tidning som personer med svårigheter att läsa en vanlig tidning kan få. Tidningen sänds förvrängd via radio så att endast prenumeranter skall ha tillgång till den. Förvrängningen kräver att prenumeranter har en särskild typ av mottagare hemma. Mottagaren som används idag spelar in tidningen på ett kassettband som sedan kan lyssnas av på vilken bandspelare som helst. Mottagarna är dock dyra att underhålla och det är svårt att få tag på nya.
Trafikinformation som når ut : En studie om nya kanaler för störningsinformation i trafiken
The Swedish traffic system is congested, especially in the urban areas; travellers face daily growing traffic jams and delays in public transport. In a congested traffic system, travellers need support to make smart and sustainable decisions and one such tool is traffic information.One issue today is that too few travellers use traffic information in support of their travel. Research shows that travellers would see great value in receiving the information; however current systems do not meet their requirements. This is a problem since the society would benefit greatly from a well functioning traffic information system.In this report, a number of channels that can be applicable for providing traffic information will be explored, with particular emphasis on interference information.The information channels are analyzed based upon the needs and requirements of the society and the traveller. The thesis of the report is: the more of these needs and requirements are met in a channel; the better is the channel to use for traffic information.
Hedgefonders avkastning gentemot Stockholmsbörsen : Hur presterar Hedgefonder under olika marknadslägen, åren 2005-2009
Title: ?When The Line Between Transmitter and Receiver Blurs? ? A Study of how organizations look at social media as part of their external communication and how they respond to the environment in the new media toolNumber of pages: 49 (51 including enclosures)Author: Ida Hansson KällTutor: Cecilia StrandCourse: Media and Communication Studies D 30hpPeriod: Spring 2010University: Division of Media and Communication, Department of Informatics and Media,Uppsala UniversityPurpose/Aim: The aim of this essay is to study how five organizations look at social media as part of their external communication and how they respond to the environment in the new media tool.Material/Method: A qualitative method has been used. Five interviews as primary sources have been conducted with representatives from each organization.Main results: The main results of the study is that organizations have to integrate social media as part of their external communication plans in order to face and respond to their surroundings in a new interaction and multi-way communicative platform. Results also show that organizations are well aware of the importance of making use and participate in social media.Keywords: blogs, external communication, facebook, respond to the environment, social media.
Sverigedemokraterna - en textanalys - en granskande analys av ett partis politiska texter
The purpose of this dissertation is to examine and present six different texts produced by the Sweden democrats. This examination focuses its attention on the content and the technique of the arguments present in the texts. In addition, the results will be put in relation to the steering documents for the Swedish school system. The aim is to observe common features regarding content and technique present in the texts. More specifi-cally, I will examine how the texts produced by the Sweden democrats pose a problem to the Swedish school system.
Den utan socker : En undersökning om skillnader mellan generationer då det gäller inställning, tillförlitlighet och påverkan av tv-reklam
The first company to send TV-commercial was the American company NBC, it was in the year of 1941. In Sweden, TV-commercials were first shown in 1987/88. TV 4 was the first channel to send commercial in Swedish television.TV has the advantage of showing both sound and picture, which makes TV the strongest channel of communication to mediate a message between a company and the consumer. Although TV-commercial is the most expensive choice to mediate a message, it is also the most effective one. (Persson, 1993)Almost everyone is exposed to TV-commercial daily.
Dagens Nyheter 3.0 : En kvalitativ jämförelsestudie av dagstidningens form i tryckt format respektive applikationsformat
A daily newspaper?s main purpose is to inform its readers without creating noise. Theimportance of the visual presentation is therefore of weight for an effectivecommunication process. This study informs about the importance of typography inthe visual decoding process. The study includes the Swedish newspaper DagensNyheter?s transition from printed media to digital media adapted to an Ipad.