Results 11 to 20 of about 1,449,604 (285)
Low Probability of Detection for Underwater Acoustic Communication: A Review [PDF]
IEEE Access, 2018 Low probability of detection (LPD) is an extremely important characteristic of an underwater acoustic communication (UWAC) system when used for military-related applications, since the detection of a communication signal in the channel may reveal the ...
Roee Diamant, Lutz Lampe
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Detection of Signals with Chaotic Varying Forms and Low Intercept Probability
Доклады Белорусского государственного университета информатики и радиоэлектроникиLow probability of intercept performance of direct-sequence spread-spectrum system with chaotic spreading sequences is investigated. The energy detectors, synchronous and asynchronous, coherent and non-coherent structures are studied here to detect the ...
V. Р. Tuzlukov
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Superimposed training low probability of detection underwater communications [PDF]
The Journal of the Acoustical Society of America, 2020 This paper proposes a superimposed training method for low probability of detection underwater acoustic communications. A long pilot sequence was superimposed to the message for equalization and synchronization purposes. A fast Hadamard transform (FHT) estimated the channel impulse response and compressed the pilot energy.
Louza, Fábio B., DeFerrari, Harry A.
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Low Probability of Detection Communication: Opportunities and Challenges [PDF]
IEEE Wireless Communications, 2019 Low probability of detection (LPD) communication has recently emerged as a new transmission technology to address privacy and security in wireless networks. Recent studies have established the fundamental limits of LPD communication in terms of the amount of information bits that can be conveyed from a transmitter to a receiver subject to a constraint ...
Shihao Yan +3 more
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Limits of Reliable Communication with Low Probability of Detection on AWGN Channels [PDF]
IEEE Journal on Selected Areas in Communications, 2013 Major revision in v2. Context, esp. the relationship to steganography updated. Also, added discussion on secret key length. Results are unchanged from previous version. Minor revision in v3. Major revision in v4, Clarified derivations (adding appendix), also context, esp. relationship to previous work in communication updated.
Boulat A. Bash +2 more
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Analysis of the low-probability-of-detection characteristics of ultraviolet communications
Optics Express, 2020 Deep ultraviolet wavelengths have been proposed for low-probability-of-detection (LPD) communications, particularly for non-line-of-sight (NLOS) links, because of the increased atmospheric absorption at these wavelengths. Motivated by this favorable feature, we develop a modeling framework to quantitatively study the LPD characteristics of ultraviolet ...
Michael J. Weisman +4 more
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Assessing respiratory pathogen communities in bighorn sheep populations: Sampling realities, challenges, and improvements. [PDF]
PLoS ONE, 2017 Respiratory disease has been a persistent problem for the recovery of bighorn sheep (Ovis canadensis), but has uncertain etiology. The disease has been attributed to several bacterial pathogens including Mycoplasma ovipneumoniae and Pasteurellaceae ...
Carson J Butler +11 more
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Detection of image structures using the Fisher information and the Rao metric [PDF]
, 2004 In many detection problems, the structures to be detected are parameterized by the points of a parameter space. If the conditional probability density function for the measurements is known, then detection can be achieved by sampling the parameter space ...
Maybank, Stephen J.
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IEEE Access, 2023 A low false alarm and narrow-wide band compatible signal detection algorithm is proposed by combining the multiscale wavelet transform extremum detection with the spectrum energy detection. The signals with different bandwidths are detected at respective
Weiying Huang, Ren Wang
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A Novel Frequency-Hopping Sequence for Covert Communication
IEEE Access, 2017 In this paper, a novel frequency-hopping sequence with lower probability of detection is proposed for covert communication systems. By formulating and solving a constrained optimization problem, a probability vector aiming for covert communication is ...
Ben Ning, Lei Guan, Haiyan Huang
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