Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 184 for “"Digital communications"”.
-
Performance of Digital Communications Over Selective Fading Channels
The performance of digital communications over selective wide-sense-stationary uncorrelated-scattering (WSSUS) fading channels is investigated. The emphasis is on the evaluation of the performance of binary differential phase-shift keyed (DPSK) and binary frequency-shift keyed (FSK) communications …
-
China’s Digital Communications Strategy in Africa: Preliminary Perspectives from Zimbabwe and Kenya
This research examines China’s digital communications and infrastructure initiatives in Africa through a comparative analysis of Kenya and Zimbabwe. While existing scholarship has emphasized Africa’s structural dependence in the digital sector, relatively limited attention has been given to how …
-
Global Positioning System navigation and digital communications for cooperating Unmanned Air Vehicles
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2002.
-
Numerical modelling and design of wideband electromagnetic structures at radio frequencies: Applications in cosmology and digital communications
… physical scenarios for analysis and design. Digital communications continue to dominate modern communication, and require increasing bandwidth to transfer the volume of information in use in today's society. One method for allowing these expansions is to improve the transmission through …
-
Digital materials for digital fabrication
This thesis introduces digital materials by analogy with digital computation and digital communications. Traditional fabrication techniques include pick-and-place, roll-to-roll, molding, patterning and more. Current research in fabrication includes algorithmic assembly [3], programmed assembly[9], …
-
Performance evaluation of chirp spread spectrum system and Land Mobile Satellite System by computer simulation
… for a spread spectrum chirp system as an analog communications system, and for the Land Mobile Satellite System (LMSS) channel as a digital communications system. For the simulation of analog communications, a spread spectrum system using chirp techniques called ‘Coded Multiple Chirp Spread …
-
Can You Hear Me? Reflexive Feminist Methodologies and Diasporic Self-Representation in the Digital Age
… the emerging media landscape of Web 2.0, where digital communications technology applications (such as Facebook, Skype, and Snapchat) are accessible by a global audience, and can act as tools for cultural identity production by diasporic individuals. This project documents the experiences of …
-
A Low-Power, Variable-Resolution Analog-to-Digital Converter
Analog-to-digital converters (ADCs) are used to convert analog signals to the digital domain in digital communications systems. An ADC used in wireless communications should meet the necessary requirements for the worst-case channel condition. However, the worst-case scenario rarely occurs. As a …
-
A reconfigurable root raised cosine filter for a mobile receiver
… decade, the growth of second generation (2G) digital communications has been explosive. Now wireless communications is evolving to third generation (3G),where it will offer wideband data services and multimedia wideband products and services such as video conferencing and high speed Internet …
-
Optimal configuration of digital communication network
… thesis is to model the minimum cost design of digital communications networks and propose a heuristical solution approach to the formulated model. The minimum cost design has been modeled as a zero-one integer programming problem. The Lagrangian relaxation method and subgradient optimization …
-
Novel receiver architectures for mobile communications
In digital communications, especially for mobile communications, the channel response needs to be estimated to maintain good system performance. However, the channel characteristics are usually unknown and time varying. In this thesis, novel receiver architectures and adaptive algorithms are …
-
Periodic complementary binary sequences
… and security of communication systems such as digital communications, faxes, telecommunications and electronic transfers especially in banking and finance. First discussed will be the Perfect Binary Sequence. Then the Golay Complementary Sequence and finally the general case of the Periodic …
-
Cyberspace, surveillance, law and privacy
… on the exercise of the human right to privacy of communications and data privacy of individuals subject to untargeted interception of digital communications. The principal aim of the thesis is to assess the legality of mass cyber surveillance of the 'Five Eyes' alliance of States, with the …
-
Physical Layer Fault Tolerance for Foundation Fieldbus Network
The open all-digital communications protocol FOUNDATION Fieldbus offers a wide range of benefits to process control systems through data reliability, diagnostics, interoperability, and distribution of controls to an unprecedented level. However, lack of media redundancy on its H1 networks can …
-
Design of a simulation for trellis coded modulation
… a very rapid increase in the application of digital computers to virtually all walks of life. This has resulted in a demand for better and faster digital communication links, at reasonable prices. Trellis coded modulation is a fairly recent development in the technology of digital …
-
Behavioral kinetic sculpture
… and the proliferation personal computing and digital communications. As the decades progress, we will find ourselves interacting with machines more and more frequently, but what will be the qualities of these interactions? Through integrating information processing technologies into kinetic …
-
The Status Of Advertising Education In The New Millennium
… study was in 1991. The World Wide Web, Internet, digital communications and emerging consumer communication choices and preferences have educators discussing changes in advertising curriculum in the new millennium. Some challenges remain constant, while others present a new frontier. An …
-
Design and development of a frequency hopper based on the DECT system for the 902-928 MHz ISM band
The Digital European Cordless Telecommunications (DECT) standard defines a high-performance digital communications system for two-way transfer of speech and data information. This thesis is concerned with the development of a frequency hopping Spread spectrum transceiver based on the DECT radio …
Page 1 of 10