Target Tracking While Jamming by Airborne Radar for Low Probability of Detection [PDF]
Sensors, 2018 Although radiation power minimization is the most important method for an advanced stealth aircraft to achieve the low probability of detection (LPD) performance against the opposite passive detection system (PDS), it is not always effective when the ...
Fei Wang +3 more
doaj +2 more sources
Using areas of known occupancy to identify sources of variation in detection probability of raptors: taking time lowers replication effort for surveys [PDF]
Royal Society Open Science, 2016 Species occurring at low density can be difficult to detect and if not properly accounted for, imperfect detection will lead to inaccurate estimates of occupancy.
Campbell Murn, Graham J. Holloway
doaj +4 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 The search for low-altitude targets becomes a more challenging task for airborne phased array radar, due to the limited system resources and serious ground clutter.
Jiawei Luo +6 more
doaj +1 more source
Fundamental Limits of Communication with Low Probability of Detection [PDF]
, 2016 This paper considers the problem of communication over a discrete memoryless channel (DMC) or an additive white Gaussian noise (AWGN) channel subject to the constraint that the probability that an adversary who observes the channel outputs can detect the
Wang, Ligong +2 more
core +1 more source