Dissertations / Theses on the topic 'Spread spectrum communications'
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Goswami, C. S. "Synchronisation techniques in spread spectrum communications." Thesis, University of Manchester, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234200.
Full textKim, Hasung. "Turbo-Like Coding for Spread-Spectrum Communications." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4815.
Full textRogers, Derek. "Non-binary spread-spectrum multiple-access communications /." Title page, contents and abstract only, 1995. http://web4.library.adelaide.edu.au/theses/09PH/09phr725.pdf.
Full textMoss, Jonathan G. O. "Spread spectrum technologies for future communications systems." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285021.
Full textMohapi, Setumo J. (Setumo James). "Power control for spread spectrum communications systems." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/39756.
Full textLane, William D. "Spread spectrum multi-h modulation." Diss., Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/16944.
Full textNguyen, Chien Ngoc. "Simulation of spread spectrum communication systems." Thesis, Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/16438.
Full textLo, Yung-Cheng. "Circular trellis-coded modulation in spread spectrum communications." Ohio : Ohio University, 1997. http://www.ohiolink.edu/etd/view.cgi?ohiou1175020785.
Full textChang, Ihn Kiel. "Antijam spread-spectrum communications over multipath-fading channels." Diss., Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/15453.
Full textKchao, Camroeum. "Direct sequence spread spectrum cellular radio." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/13719.
Full textSherlock, Benjamin. "Spread-spectrum techniques for environmentally-friendly underwater acoustic communications." Thesis, University of Newcastle upon Tyne, 2018. http://hdl.handle.net/10443/4097.
Full textAngelopoulos, Pavlos. "Direct-sequence spread-spectrum acoustic communications with CRV Decomposition." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Jun%5FAngelopoulos.pdf.
Full textThesis advisor(s): Roberto Cristi, Kevin B. Smith. Includes bibliographical references (p. 91-94). Also available online.
Faulkner, Sean (Sean Anthony) Carleton University Dissertation Engineering Electrical. "Composite sequences for rapid acquisition of direct-sequence spread spectrum signals." Ottawa, 1992.
Find full textXu, Kai. "Development and validation of simulations for hopped spread spectrum communications." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq20716.pdf.
Full textHashmi, Shafiq Ullah. "Efficient forward error correction coding technique for spread spectrum communications." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0021/MQ54317.pdf.
Full textBoubaker, Nejib. "Ultra wide bandwidth spread spectrum impulse radio for wireless multi-access communications /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?ELEC%202005%20BOUBAK.
Full textWu, Yating. "Code tracking for direct-sequence spread-spectrum systems under multiuser environment and multipath fading channels /." access full-text access abstract and table of contents, 2009. http://libweb.cityu.edu.hk/cgi-bin/ezdb/thesis.pl?phd-ee-b30082602f.pdf.
Full text"Submitted to Department of Electronic Engineering in partial fulfillment of the requirements for the degree of Doctor of Philosophy." Includes bibliographical references (leaves 105-111)
Jiang, Chen. "Applications of frequency hopping systems." Click to view the E-thesis via HKUTO, 2001. http://sunzi.lib.hku.hk/hkuto/record/B31241852.
Full text陳子健 and Chi-kin John Baptist Chan. "A study of binary sequences for direct-sequence spread-spectrum multiple-access communication systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31212761.
Full textGui, Xiang, and 歸翔. "A technique for performance improvement of DS SS systems operating in fading and jamming environments." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31236923.
Full text葉冠華 and Kun-wah Yip. "A study of direct-sequence spread-spectrum multiple-access communications over multipath Rayleigh fading channels." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B31234549.
Full text江晨 and Chen Jiang. "Applications of frequency hopping systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31241852.
Full textJiang, Chen. "Applications of frequency hopping systems." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk:8888/cgi-bin/hkuto%5Ftoc%5Fpdf?B22277729.
Full textChan, Chi-kin John Baptist. "A study of binary sequences for direct-sequence spread-spectrum multiple-access communication systems /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B16043005.
Full textYip, Kun-wah. "A study of direct-sequence spread-spectrum multiple-access communications over multipath Rayleigh fading channels /." [Hong Kong] : University of Hong Kong, 1995. http://sunzi.lib.hku.hk/hkuto/record.jsp?B14804049.
Full textGui, Xiang. "A technique for performance improvement of DS SS systems operating in fading and jamming environments /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20294062.
Full textChreitah, B. "Rapid synchronization techniques for direct sequence spread spectrum systems." Thesis, University of Strathclyde, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381111.
Full textFletcher, Michael John. "Enhanced Implementations for Arbitrary-Phase Spread Spectrum Waveforms." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/90286.
Full textMaster of Science
This thesis presents a series of options for enhancing the implementation of arbitrary-phase spread spectrum waveforms, a highly-secure class of wireless technologies, in order to reduce design complexity with minimal loss, provide methods for real-time performance adaptations, and extend the traditional application space for increased security of communications in other networks. A number of enhanced hardware prototypes were implemented to provide measurable results, achieving substantial computational resource gains and design flexibility. Given the computational resources and power constraints of devices in the Internet of Things (IoT), the signal detection loss of 2.10 dB for reducing the hardware logic utilization of the brute force fallthrough correlator by more than 76% (and eliminating the need to dedicate computationally-expensive embedded multipliers) is a very reasonable trade. While the waveform is fundamentally designed for increased security, adapting to widespread and/or commercial use may allow some sacrifice of the signal’s ability to avoid interception/detection to improve performance in undesirable operating conditions. In a similar, yet reversed, case, injecting a watermarking signature at the physical layer (PHY) of less-secure wireless technologies for receiver-side authentication also proves to be beneficial.
Xiao, Shengkuan. "Advances in image modeling and data communications." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 132 p, 2007. http://proquest.umi.com/pqdweb?did=1331413801&sid=6&Fmt=2&clientId=8331&RQT=309&VName=PQD.
Full textMalan, Estian. "Multi-dimensional direct-sequence spread spectrum multiple-access communication with adaptive channel coding." Pretoria : [S.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-10252007-142715/.
Full textIbrahim, Brima Babatunde. "Direct sequence spread spectrum PN code synchronisation in mobile environments." Thesis, King's College London (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248106.
Full textK, C. Ravikumar. "Spread spectrum techniques for distributed multimeasurand optical fiber sensors /." This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-03142009-040658/.
Full textFathallah, Habib. "Narrowband interference suppression in spread spectrum CDMA communications via blind equalization." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq25573.pdf.
Full textGandhi, Hanoz. "A frequency synthesizer for a 2.4 GHz spread spectrum communications application." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/10271.
Full textIncludes bibliographical references (leaves 104-106).
by Hanoz Gandhi.
M.Eng.
Rockliff, Simon C. "Frequency hopping techniques for digital mobile radio /." Title page, contents and abstract only, 1990. http://web4.library.adelaide.edu.au/theses/09PH/09phr683.pdf.
Full textBais, Viraj Kumar. "Simulation of multistage detector for spread-spectrum applications." Master's thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-12232009-020220/.
Full textChen, Yow-Chia. "Throughput performance of minislot multihop receiver directed CDMA packet radio networks." Ohio : Ohio University, 1993. http://www.ohiolink.edu/etd/view.cgi?ohiou1174937624.
Full textHaisan, Abdulqader Mohamed Saeed. "Direct Sequence Spread Spectrum (DS/SS) chip coding techniques for enhancing low-probalility of intercept (LPI) performance." Thesis, Cranfield University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238876.
Full textCresp, Gregory. "On combination and interference free window spreading sequences." University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0152.
Full textMaggenti, Mark A. "Spread spectrum satellite multiple access and overlay service." Thesis, Virginia Tech, 1987. http://hdl.handle.net/10919/45769.
Full textThis thesis presents two applications of spread spectrum technology to very small aperture terminal (VSAT) satellite communication networks. It describes two spread spectrum multiple access systems which use a form of noncoherent M-ary FSK (MFSK) as the primary modulation and analyzes their throughput. The analysis considers such factors as satellite power constraints and adjacent satellite interference. It considers the effect of onâ board processing on the multiple access efficiency and investigates the feasibility of overlaying low data rate spread spectrum signals on existing satellite traffic as a form of frequency reuse.
Master of Science
Ravikumar, K. C. "Spread spectrum techniques for distributed multimeasurand optical fiber sensors." Thesis, Virginia Tech, 1993. http://hdl.handle.net/10919/41615.
Full textSpread spectrum techniques offer an alternate solution to the urgency for distributed optical fiber sensors. These techniques are based on the properties of pseudorandom sequences that have triangular autocorrelation functions with peaks only at regions of no delay. This affords an opportunity to give the desired signal a power advantage over many types of interference and noise. A study in employing spread spectrum techniques for multiplexing optical fiber sensors is presented. A mathematical analysis of the system is conducted with due consideration given to performance issues. Simulations in software are conducted to characterize system performance. Hardware developed for this project operates at over 1 Mbps and is capable of simultaneously monitoring four sensors. Real time experiments conducted on these multiplexed sensors affirm the technical feasibility of the system. Configurations for viable applications of the system are also suggested.
Master of Science
Yu, Haiyang. "A novel chaotic estimation technique and its application to spread spectrum communications." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq65170.pdf.
Full textBenison, Benjamin David. "Receiver structures for a fast-frequency-hopped spread spectrum mobile communications system." Thesis, University of Canterbury. Electrical and Electronic Engineering, 1999. http://hdl.handle.net/10092/5961.
Full textKozminchuk, Brian William Carleton University Dissertation Engineering Electrical. "Kalman filtering of narrowband interference from direct sequence spread spectrum communications systems." Ottawa, 1992.
Find full textLi, Hongxiang. "Performance of multitone direct sequence speread [sic] spectrum in the presence of imperfect carrier synchronization." Ohio : Ohio University, 2004. http://www.ohiolink.edu/etd/view.cgi?ohiou1103057412.
Full textSong, Xiangyu. "Systematic design of high dimensional circular trellis-coded modulation in spread spectrum communications." Ohio : Ohio University, 2001. http://www.ohiolink.edu/etd/view.cgi?ohiou1178911455.
Full textMendola, Jeffrey B. "Simulation and analysis of a time hopping spread spectrum communication system." Thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-11012008-063451/.
Full textManchiraju, Dinakar. "Evaluation of pseudorandom sequences used in third generation spread spectrum systems." Ohio : Ohio University, 2003. http://www.ohiolink.edu/etd/view.cgi?ohiou1081801327.
Full textPelekanos, Georgios N. "Performance of acoustic spread-spectrum signaling in simulated ocean channels." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Jun%5FPelekanos.pdf.
Full textThesis advisor(s): Roberto Cristi, Joseph Rice. Includes bibliographical references (p. 107-108). Also available online.
Azad, Hedayat. "Multi-service, multi-rate and multi-environment hybrid spread spectrum CDMA for mobile communications." Thesis, King's College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271427.
Full text