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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.
21

CDMA SATELLITE MOBILE COMMUNICATION SYSTEM MULTI-SIGNAL RECEIVING AND SOFTWARE IMPLEMENTATION

Hao, Wu, Zhibin, Zheng 10 1900 (has links)
International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California / This paper presents one new type CDMA multi-signal receiving protocol, which is suitable for satellite mobile communication systems. Then it gives the principle analysis and describes the realization of this protocol. Meanwhile, it gives the software protocol implementation scheme. From the long point of view, it will more increase the system flexibility, which is easier to update; and will solve the interoperability and integration application problems. Finally, the simulation results conclude that software implementation of CDMA multi-signal receiving in satellite mobile communication system is feasible, and it may be used in other wireless communication systems.
22

A field programmable gate array based software defined radio design for the space environment

Livingston, Jeremy V. January 2009 (has links) (PDF)
Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, December 2009. / Thesis Advisor(s): Kragh, Frank E.; Loomis, Herschel. "December 2009." Description based on title screen as viewed on January 27, 2010. Author(s) subject terms: data compression, signal analysis, Software Defined Radio (SDR), system generator, Fast Fourier Transform (FFT), Field Programmable Gate Array (FPGA), Xilinx, Virtex (TM), error detection, parity, space-based computing. Includes bibliographical references (p. 101-102). Also available in print.
23

Adaptive modulation for cognitive radios

Sharma, Gaurav, January 2008 (has links) (PDF)
Thesis (M.S.)--Missouri University of Science and Technology, 2008. / Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed February 13, 2008) Degree granted by Missouri University of Science and Technology, formerly known as University of Missouri--Rolla. Includes bibliographical references (p. 44-45).
24

Weak signal reception using software defined radios and a two-element antenna array

Rundquist, Victor Frederic, January 2006 (has links) (PDF)
Thesis(M.S.)--Auburn University, 2006. / Abstract. Vita. Includes bibliographic references.
25

Multi-channel hardware/software codesign on a software radio platform

Bales, Jason M. January 2008 (has links)
Thesis (M.S.)--George Mason University, 2008. / Vita: p. 89. Thesis director: David D. Hwang. Submitted in partial fulfillment of the requirements for the degree of Master of Science in Electrical Engineering. Title from PDF t.p. (viewed Mar. 9, 2009). Includes bibliographical references (p. 85-88). Also issued in print.
26

Implementation of DQPSK and OWM-QAM as software defined radio system /

Li, Qi, January 2008 (has links)
Thesis (M.S.)--University of Texas at Dallas, 2008. / Includes vita. Includes bibliographical references (leaves 82-84)
27

A MATLAB-based FM demodulator for the radio broadcast data system /

Shende, Sandeep Subhash. January 2010 (has links)
Thesis (M.S.)--Boise State University, 2010. / Includes abstract. Includes bibliographical references (leaves 73-75).
28

A MATLAB-based FM demodulator for the radio broadcast data system

Shende, Sandeep Subhash. January 2010 (has links)
Thesis (M.S.)--Boise State University, 2010. / Title from t.p. of PDF file (viewed July 20, 2010). Includes abstract. Includes bibliographical references (leaves 73-75).
29

GNU Radio testbed

Manicka, Naveen. January 2007 (has links)
Thesis (M.S.)--University of Delaware, 2007. / Principal faculty advisor: Chien-Chung Shen, Dept. of Computer & Information Sciences. Includes bibliographical references.
30

Design and Implementation of an Efficient SCA Framework for Software-Defined Radios

Aguayo Gonzalez, Carlos R. 02 October 2006 (has links)
Software Defined Radio (SDR) is a relatively new approach to develop wireless communication systems. SDR presents a framework for developing flexible, reconfigurable devices intended to alleviate some of the issues arising from the evolution of wireless technology. The Software Communications Architecture (SCA), developed by the Joint Tactical Radio System program of the US Department of Defense, is an open architecture for implementing SDR, relying on commercial technology, standard interfaces, and well-known design patterns. Although the SCA is intended to provide easier, faster development of flexible applications that are upgradeable and maintainable, the acceptance of the architecture has been limited in part by traditional radio engineers' lack of understanding modern software engineering techniques. Because of the steep learning curve, some developers face frustration and serious delays when first introduced to the SCA. This work presents a comprehensive tutorial which introduces radio engineers to the SCA and the techniques used in it. Another concern for accepting the SCA are the performance, size, cost, and power consuption difficulties faced in early implementations of the architecture. Traditionally, SCA implementations have been developed for platforms based on General Purpose Processors. This approach, while believed to be the easiest to implement, does not make the best out of available processor technology. In order to provide a more efficient implementation of radios based on the SCA, we present the design and development of an SCA Core Framework version 2.2 for a homogeneous TI C64 DSP platform. This framework is implemented by leveraging the existing implementation of the Open-Source SCA Implementation::Embedded (OSSIE) by porting it to the C64 platform. Two sample waveforms are developed and deployed to demonstrate the functionality of the framework. Preliminary performance and memory footprint profiling results are provided. / Master of Science

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