Results 1 to 10 of about 2,448 (172)

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

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
  +5 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

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   +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

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. Djordjević
openalex   +2 more sources

Detection and jamming low probability of intercept (LPI) radars

open access: green, 2006
An increasing number of LPI radars are integrated into integrated air defense systems (IADS) and modern platforms and weapons, such as anti-ship missiles, and littoral weapon systems. These LPI radars create a requirement for modern armed forces to develop new techniques, strategies, and equipment.
Aytug Denk
  +5 more sources

Design and Processing of a Novel Chaos-Based Stepped Frequency Synthesized Wideband Radar Signal [PDF]

open access: yesSensors, 2018
The linear stepped frequency and linear frequency shift keying (FSK) signal has been widely used in radar systems. However, such linear modulation signals suffer from the range–Doppler coupling that degrades radar multi-target resolution.
Tao Zeng   +3 more
doaj   +2 more sources

Dwell Time Allocation Algorithm for Multiple Target Tracking in LPI Radar Network Based on Cooperative Game [PDF]

open access: yesSensors, 2020
To solve the problem of dwell time management for multiple target tracking in Low Probability of Intercept (LPI) radar network, a Nash bargaining solution (NBS) dwell time allocation algorithm based on cooperative game theory is proposed.
Chenyan Xue, Ling Wang, Daiyin Zhu
doaj   +2 more sources

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