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Rozprawy doktorskie na temat „Electronic jamming”

Autor: Grafiati

Data publikacji: 5 czerwca 2025

Data aktualizacji: 1 sierpnia 2025

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Sprawdź 19 najlepszych rozpraw doktorskich naukowych na temat „Electronic jamming”.

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1

Sonawane, Jayesh Murlidhar. "Relay network under broadband jamming." Thesis, Wichita State University, 2010. http://hdl.handle.net/10057/3747.

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In this thesis, the bit error rate (BER) performance of a relay network using binary phase shift keying (BPSK) and quadrature phase shift keying (QPSK) modulation was compared under broadband jamming with a normalized maximum ratio combining (MRC) scheme at various jamming locations. Results show that, among various jamming locations in the relay network, jamming at the destination has more negative effects on BER than jamming at the relay. Other observations show that increasing the jamming power will cause loss in the diversity order of the relay network.<br>Thesis (M.S.)--Wichita State Univ

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Price, Alfred W. "The evolution of electronic warfare equipment and techniques in the USA, 1901 to 1945." Thesis, Loughborough University, 1985. https://dspace.lboro.ac.uk/2134/7410.

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This work describes the evolution cf electronic warfare equipment and techniques in the USA, from the first instance of radio jamming in that country in 1901 until the end of World War II in 1945. It begins with a review of early work on telegraph, radio and radar systems throughout the world, and countermeasures used during trials or in combat prior to World War II. Immediately after the USA ertered the conflict in 1941, the Radio Research Laboratory was set up near Boston to develop radio countermeasures equipment for the US armed forces. The organisation rapidly outgrew the capacity of a an

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Christoffersson, Einar. "Jamming with the Plot Twister : Designing virtual worlds for improvised performances." Thesis, Högskolan Dalarna, Bildproduktion, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:du-28695.

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Using a research through design approach, this thesis presents a first prototype of Plot Twister, a novel interactive, audiovisual interface specifically designed for solo musicians improvising alongside computers. This highly simplified and intuitive interface allows the performer to simultaneously manipulate visual and musical content using one single controller, thus enabling the other hand to play an instrument. The design is based on the concept of adaptive music used in video games, where progression of musical form and expression over time is produced through movement in virtual 3D-spac

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Hällgren, Karl-Johan. "Waveform agility for robust radar detection and jamming mitigation." Thesis, Uppsala universitet, Fasta tillståndets elektronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-453241.

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In this report metrics for jamming resistance and radar performance of waveform sets are described and developed, and different sets of waveforms are optimized, evaluated and compared. It is shown that without additional processing or PRI jitter, waveform sets can reach jamming resistance a few dB worse than what is provided by PRI jitter alone, and together with PRI jitter a few dB better. Waveforms with better jamming resistance tend to have worse range sidelobes and Doppler tolerance, but show less structure in their spectrograms, suggesting better LPI properties. The Doppler tolerance metr

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Petersson, Björn. "Modeling of a Retrodirective Channel With Active Antenna Arrays for Cross-Eye Jamming." Licentiate thesis, KTH, Elektroteknisk teori och konstruktion, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-217232.

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Cross-Eye (CE) jamming is a technique aimed at inducing false target angles in radar measurements. The potential to deceive monopulse radar, a radar type commonly used due to its angular accuracy and resilience against jamming, has captured the interest of Electronic Warfare (EW) system manufacturers. CE jamming may increase the capability of self-defense against radar guided missiles. In this thesis, a CE jammer, based on the retrodirective channel design, for use in an EW systems is modeled and analyzed. The focus of the analysis is on the non-reciprocal Active Electronically Scanned Arrays

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Rozenbeek, David Jan. "Evaluation of Drone Neutralization Methods using Radio Jamming and Spoofing Techniques." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279557.

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The usage of drones is steadily increasing as drones are becoming more available and useful to the general public, but drone usage also leads to problems as for example airports have had to shutdown due to drone sightings. It has become clear that a counter-drone system must be in place to neutralize intruding drones. However, neutralizing a drone is not an easy task, the risk of causing collateral damage and interfering with other radio systems must be highly considered when designing a counter-drone system. In this thesis a set of consumer drones was selected based on market popularity. By s

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Lichtman, Marc Louis. "Antifragile Communications." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/72267.

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Jamming is an ongoing threat that plagues wireless communications in contested areas. Unfortunately, jamming complexity and sophistication will continue to increase over time. The traditional approach to addressing the jamming threat is to harden radios, such that they sacrifice communications performance for more advanced jamming protection. To provide an escape from this trend, we investigate the previously unexplored area of jammer exploitation. This dissertation develops the concept of antifragile communications, defined as the capability for a communications system to improve in perfo

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Karaaslan, Ibrahim. "Anti-sensor Network: Distortion-based Distributed Attack In Wireless Sensor Networks." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12609276/index.pdf.

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In this thesis, a novel anti-sensor network paradigm is introduced against wireless sensor networks (WSN). Anti-sensor network (ASN) aims to destroy application reliability by adaptively and anonymously introducing adequate level of artificial distortion into the communication of the event features transported from the sensor nodes (SN) to the sink. ASN is composed of anti-sensor nodes (aSN) randomly distributed over the sensor network field. aSNs pretend to be SNs tomaintain anonymity and so improve resiliency against attack detection and prevention mechanisms. Performance evaluations via mat

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Nilsson, Jesper. "Elektronisk krigföring mot sensorer i varnar- och motverkanssystem." Thesis, Försvarshögskolan, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-9840.

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This report on the subject of Systems Science for Defence and Security, aims to study the possibility for electronic warfare (EW) against the radar in active protection system (APS) on ground combat vehicles. The goal of the EW is to ensure effect of current anti-tank systems against an enemy equipped with APS. Given that the radar is susceptible to jamming, (1) Which opportunities would an EW-system used in conjunction with an anti-tank system, bestow on a successful engagement? (2) Which effect could jamming of an APS result in, and what type of jamming would yield this desired effect? The

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Quiros, Paula Quintana. "SNR estimation and jamming detection techniques using wavelets." Thesis, California State University, Long Beach, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1569590.

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<p> An SNR estimation approach and a jamming detector based on wavelet transform theory are presented. The SNR estimator is an in-service, non-data aided estimator that operates on M-PSK and QAM modulated signals transmitted over baseband CWGN channels. The signal and noise power are separated through a non-linear wavelet technique known as <i>denoising.</i> </p><p> Two wavelet-based estimators are presented. The first method uses hard thresholding which extracts the amplitude trend over one or several symbol periods, depending on whether the modulation is constant or multi-level envelope.

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Karkatzounis, Konstantinos. "Performance evaluation of different jamming strategies over uncoded noncoherent fast FH/MFSK communication systems." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Sep%5FKarkatzounis.pdf.

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M, M. Galib Asadullah. "Robust wireless communications under co-channel interference and jamming." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22571.

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Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Gordon L. Stuber; Committee Member: Alfred D. Andrew; Committee Member: John A. Buck; Committee Member: Steven W. McLaughlin; Committee Member: Ye (Geoffrey) Li.

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Deka, Bhaswati. "Secure Localization Topology and Methodology for a Dedicated Automated Highway System." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/1995.

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Localization of nodes is an important aspect in a vehicular ad-hoc network (VANET). Research has been done on various localization methods. Some are more apt for a specific purpose than others. To begin with, we give an overview of a vehicular ad-hoc network, localization methods, and how they can be classified. The distance bounding and verifiable trilateration methods are explained further with their corresponding algorithms and steps used for localization. Distance bounding is a range-based distance estimation algorithm. Verifiable trilateration is a popular geometric method of localization

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Zhou, Yijun. "Polymer-Ceramic Composites for Conformal Multilayer Antenna and RF Systems." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1245240041.

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15

Du, Plessis W. P. (Warren Paul). "A comprehensive investigation of retrodirective cross-eye jamming." Thesis, 2010. http://hdl.handle.net/2263/25480.

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Cross-eye jamming is an Electronic Attack (EA) technique that induces an angular error in the radar being jammed. The main benefit of cross-eye jamming is that it is effective against monopulse tracking radars, which are largely immune to other forms of jamming. The objective of this research is to gain a complete understanding of cross-eye jamming so that systems that might be developed in future can be properly specied. The main contribution of this work is a comprehensive mathematical and experimental study of retrodirective cross-eye jamming. The mathematical analysis considers all aspects

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Cheng, Nan-Hung, and 鄭南宏. "Performance Simulation and Analysis of Electronic Jamming System for Frequency-Hopping Communications." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/75953398624689026509.

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碩士<br>國立中央大學<br>通訊工程研究所碩士在職專班<br>96<br>Due to the requirements and developments of personal mobile communications for the past several decades, all kinds of global and local wireless/wire and military/civil communications systems are developing flourishingly in accordance with the novelties and breakthrough of all related electronic and communication techniques. Nevertheless, in order to fulfill specific tactical operations or objectives, especially for the tactical communications systems, and to decrease the intentions of the adversaries to detect and intercept the transmissions of some speci

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Chou, Yen-Wen, and 周彥文. "Research on Fuzzy Multiple Attribute Decision Making Applied to Electronic Jamming Resource Allocation." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/21155767644161603383.

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碩士<br>國防大學<br>資訊管理學系<br>102<br>With the continuous development of information and electronic technology, electronic warfare has become the dominant domain of modern information operation, in which the most active part is the radar electronic warfare. The major target in the radar electronic warfare is enemy radars. The means of attack include lowing or weakening radar’s functions through microwave interference. Their purposes are covering our operations and obtaining Electromagnetic superiority. However, when there are multiple radars and jamming equipment, the commander must adopt effective p

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18

Swift, Benjamin. "The design of a smartphone-based digital musical instrument for jamming." Phd thesis, 2012. http://hdl.handle.net/1885/151432.

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Open-ended human-computer interactions, such as those in interactive digital art and music, are an increasingly popular area of study in HCI. They provide an opportunity to examine playfulness, creativity and expression and challenge conventional HCI notions of quality, evaluation and how to measure success. Jamming-improvisational group music making-is often held up as an example of open-ended creativity. This thesis describes the development of Viscotheque, an iPhone- based digital musical instrument (DMI) designed for jamming, over three major design-test cycles. Over these three iteration

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Teles, Diogo Santos Pinto da Costa. "Development of an Electronic Warfare Package." Master's thesis, 2019. http://hdl.handle.net/10400.26/30267.

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Nowadays with the development and cost reduction of unmanned vehicles, armed forces around the world have been using these systems as a replacement or complement for conventional manned systems. Because of all the advantages inherent to the use of these vehicles, there have been many possible applications for these systems. One of possible applications is its use as a vehicle for carrying an Electronic Warfare package. Electronic Warfare, since the military started using and depending on the electromagnetic spectrum to achieve their objectives, has been a major warfare area of high interest.

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