Results 51 to 60 of about 517 (176)
In this paper, in order to reduce the probability of the radar waveform intercepted by the passive detection system, the time-bandwidth product of the radar waveform is increased, and the detection probability of the radar waveform to the target is ...
Yuxiao Song +5 more
doaj +1 more source
Analysis of Multimode Low-Probability-of-Intercept (LPI) Communications with Atmospheric Effects [PDF]
This research expanded Low Probability of Intercept (LPI) communications analysis in two areas. First, multimode communication was included to account for ground to ground and air to ground links in addition to the standard air to air links traditionally
Ghordlo, Ala
core +1 more source
Detection of transmitters with low probability of intercept or LPI radars [PDF]
L’interception des émissions radar non-coopératifs opérée par des récepteurs de guerre électronique (GE) est un enjeu de défense et de sécurité. La généralisation de radars « à faible probabilité d’interception », dits radars LPI (Low Probability of ...
Foucault, Antoine
core
A low probability of intercept (LPI)‐based cooperative node selection and transmit resource allocation (CNS‐TRA) strategy is proposed for multi‐target tracking in multiple radars architecture (MRA).
Lintao Ding +3 more
doaj +1 more source
This paper introduces a novel AMR method named IUDR‐Net to address the challenge of poor recognition accuracy under low SNR conditions. The method first employs the improved U‐Lite network to suppress the impact of noise effectively and then adopts the ResNet18‐1D network to perform the AMR task efficiently.
Haikun Fang +4 more
wiley +1 more source
Robust multiple channel scanning and detection of low probability of intercept (LPI) communication signals [PDF]
In this paper, multiple channel scanning and detection methods for low probability of intercept (LPI) signals in a multisignal environment are proposed.
Shaameri, Ahmad Zuri, Kanaa, Abdulrahman
core +2 more sources
Sig2text: A Vision‐Language Model for Non‐Cooperative Radar Signal Parsing
We propose Sig2text, a symbolic radar signal recognition and parameter estimation framework that treats waveform analysis as a parsing task using a vision‐language model. By integrating time‐frequency representations with a context‐free grammar and transformer‐based architectures, Sig2text accurately identifies complex modulation types and estimates ...
Jun‐Yu Yuan +8 more
wiley +1 more source
Cognitive MIMO Frequency Diverse Array Radar with High LPI Performance
Frequency diverse array (FDA) has its unique advantage in realizing low probability of intercept (LPI) technology for its dependent beam pattern. In this paper, we proposed a cognitive radar based on the frequency diverse array multiple-input multiple ...
Ling Huang +3 more
doaj +1 more source
WFH: A Wideband Frequency Hopping‐Based Anti‐Jamming Navigation Signal Structure
Given the limitations of existing satellite navigation signals in antijamming performance amid growing environmental jamming, this paper proposes a navigation signal structure based on wideband frequency hopping (WFH) modulation to enhance both antijamming capability and measurement accuracy. It further introduces the nonstationary effective carrier‐to‐
Chenyang Wang +4 more
wiley +1 more source
X-Band Low-Probability Intercept Marine Radar Antenna Design With Improved Bandwidth and High Isolation [PDF]
A series-parallel hybrid-fed microstrip array antenna design is presented for X-band low-probability intercept (LPI) marine radars. Contrary to traditional counterparts, the proposed antenna has improved impedance and radiation bandwidth from 9.1 to 9.6 ...
Yegin, Korkut, Pehlivan, Mustafa
core +1 more source

