Results 11 to 20 of about 1,464,347 (286)
Refined PHD Filter for Multi-Target Tracking under Low Detection Probability
Sensors, 2019 Radar target detection probability will decrease as the target echo signal-to-noise ratio (SNR) decreases, which has an adverse influence on the result of multi-target tracking.
Sen Wang, Qinglong Bao, Zengping Chen
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Limits of low-probability-of-detection communication over a discrete memoryless channel [PDF]
2015 IEEE International Symposium on Information Theory (ISIT), 2015 This paper considers the problem of communication over a discrete memoryless channel subject to the constraint that the probability that an adversary who observes the channel outputs can detect the communication is low. Specifically, the relative entropy between the output distributions when a codeword is transmitted and when no input is provided to ...
Wang, Ligong +2 more
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The Journal of the Acoustical Society of America, 2008 Direct-sequence spread spectrum is used for underwater acoustic communications between nodes, at least one of which is moving. At-sea data show that the phase change due to source motion is significant: The differential phase between two adjacent symbols is often larger than the phase difference between symbols.
T C, Yang, Wen-Bin, Yang
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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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Performance Comparison of Relay-Based Covert Communications: DF, CF and AF
Sensors, 2023 In this paper, we investigate the performance of covert communications in different types of a relay system: decode-and-forward (DF), compress-and-forward (CF) and amplify-and-forward (AF).
Jihwan Moon
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Gaussian-Distributed Spread-Spectrum for Covert Communications
Sensors, 2023 Covert communication techniques play a crucial role in military and commercial applications to maintain the privacy and security of wireless transmissions from prying eyes.
Ismail Shakeel +3 more
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Disguised Full-Duplex Covert Communications
Sensors, 2023 Covert communications have arisen as an effective communications security measure that overcomes some of the limitations of cryptography and physical layer security.
Jihwan Moon
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From Constellation Dithering to NOMA Multiple Access: Security in Wireless Systems
Sensors, 2021 In recent years, there has been a noticeable increase in interest in the possibilities of embedding additional data in the constellation of an already existing information signal in radio technology.
Krystian Grzesiak, Zbigniew Piotrowski
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Time Series Data Anomaly Detection Based on Total Variation Ratio Separation Distance [PDF]
Jisuanji kexue, 2022 Anomaly detection for time series data is one of the important research problems in data analysis.Its main challenge is to detect if there are any anomalies and locate anomalies with low delay according to context.Most of existing anomaly detection ...
XU Tian-hui, GUO Qiang, ZHANG Cai-ming
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Analysis of Low Probability of Detection Capability for Chaotic Standard Map-Based FH-OFDMA System
Applied Sciences, 2021 A frequency hopping orthogonal frequency division multiple access (FH-OFDMA) can provide low probability of detection (LPD) and anti-jamming capabilities to users against adversary detectors. To obtain an extreme LPD capability that cannot be provided by
Junwoo Jung +4 more
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