Results 1 to 10 of about 2,705,955 (242)

Low Probability of Intercept/Detect (LPI/LPD) Secure Communications Using Antenna Arrays Employing Rapid Sidelobe Time Modulation [PDF]

open access: greenIEEE Transactions on Antennas and Propagation
We present an electronically-reconfigurable antenna array offering low probability of intercept/detect (LPI/LPD) and secure communications capabilities simultaneously at the physical layer. This antenna array is designed to provide rapidly time-varying sidelobes and a stationary main lobe. By performing rapid sidelobe time modulation (SLTM), the signal
Jiahao Zhao   +3 more
arxiv   +9 more sources

Low Probability of Intercept (LPI) Radar Signal Identification Techniques

open access: bronzeBioscience Biotechnology Research Communications, 2021
A structure which a makes use of both Radar and Electronic Support tools is known as Low Probability of Intercept. Evading identification by ES receiver is the main aim behind the LPI radar.
M. Rajani Devi
semanticscholar   +3 more sources

Low probability of intercept (LPI) free-space optical communication with wavelength diversity in strong atmospheric turbulence regime

open access: goldOptics Express
In physical-layer security and cryptography we are concerned with the security of the transmitted data, while in low probability of intercept (LPI) communication with protecting the privacy of the end users. In our recent publications related to LPI communications and radars over free-space optical (FSO) links we proposed to hide the constant-amplitude
Vijay Nafria, Ivan B. Djordjevic
semanticscholar   +3 more sources

Joint Dwell Time and Bandwidth Optimization for Multi-Target Tracking in Radar Network Based on Low Probability of Intercept [PDF]

open access: yesSensors, 2020
Radar network systems have been demonstrated to offer numerous advantages for target tracking. In this paper, a low probability of intercept (LPI)-based joint dwell time and bandwidth optimization strategy is proposed for multi-target tracking in a radar
Lintao Ding   +3 more
doaj   +3 more sources

Joint Transmitter Selection and Resource Management Strategy Based on Low Probability of Intercept Optimization for Distributed Radar Networks [PDF]

open access: yesRadio Science, 2018
In this paper, a joint transmitter selection and resource management (JTSRM) strategy based on low probability of intercept (LPI) is proposed for target tracking in distributed radar network system.
Chenguang Shi, Fudi Wang, Sana Salous
exaly   +5 more sources

Spatial Information-Theoretic Optimal LPI Radar Waveform Design [PDF]

open access: yesEntropy, 2022
In this paper, the design of low probability of intercept (LPI) radar waveforms considers not only the performance of passive interception systems (PISs), but also radar detection and resolution performance. Waveform design is an important considerations
Jun Chen   +4 more
doaj   +2 more sources

Joint Aperture and Power Allocation Strategy for a Radar Network Localization System Based on Low Probability of Interception Optimization [PDF]

open access: yesSensors, 2023
In the process of using the Distributed Radar Network Localization System (DRNLS) further to improve the survivability of a carrier platform, the random characteristics of the system’s Aperture Resource Allocation (ARA) and Radar Cross Section (RCS) are ...
Chenyan Xue, Ling Wang, Daiyin Zhu
doaj   +2 more sources

On a Closer Look of a Doppler Tolerant Noise Radar Waveform in Surveillance Applications [PDF]

open access: yesSensors
The prevalence of Low Probability of Interception (LPI) and Low Probability of Exploitation (LPE) radars in contemporary Electronic Warfare (EW) presents an ongoing challenge to defense mechanisms, compelling constant advances in protective strategies ...
Maximiliano Barbosa   +3 more
doaj   +2 more sources

LPI Radar Waveform Recognition Based on Features from Multiple Images [PDF]

open access: yesSensors, 2020
Detecting and classifying the modulation type of the intercepted noisy LPI (low probability of intercept) radar signals in real-time is a necessary survival technique in the electronic intelligence systems.
Zhiyuan Ma   +3 more
doaj   +2 more sources

Efficient Radar-Target Assignment in Low Probability of Intercept Radar Networks: A Machine-Learning Approach

open access: yesIEEE Open Journal of the Communications Society, 2023
To achieve low probability of intercept (LPI) in radar networks for multiple target detection, it is necessary to find the optimal assignment of distributed radars to targets.
Hamid Amiriara   +2 more
doaj   +2 more sources

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