Results 21 to 30 of about 517 (176)
IEEE Transactions on Antennas and PropagationWe 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
, Nader Behdad, Shichen Qiao
exaly +3 more sources
Counter-Interception and Counter-Exploitation Features of Noise Radar Technology
Remote Sensing, 2021 In defense applications, the main features of radars are the Low Probability of Intercept (LPI) and the Low Probability of Exploitation (LPE). The counterpart uses more and more capable intercept receivers and signal processors thanks to the ongoing ...
Gaspare Galati +3 more
doaj +1 more source
IET Radar, Sonar & Navigation, 2021 This paper proposes a collaborative transmit resource scheduling and waveform selection (CTRSWS) strategy for target tracking in multistatic radar system which consists of one transmitter and an arbitrary number of receivers.
Yijie Wang +3 more
doaj +1 more source
IET Signal Processing, 2022 To protect the satellite communication uplink signal (SCUS) from being intercepted by an eavesdropper, this study proposes several tactics to ensure SCUS being in the low probability of intercept (LPI) state.
Fei Wang +4 more
doaj +1 more source
Defence Technology, 2023 Nyquist Folding Receiver (NYFR) is a perceptron structure that realizes a low probability of intercept (LPI) signal analog to information. Aiming at the problem of LPI radar signal receiving, the time domain, frequency domain, and time-frequency domain ...
Tao Wan, Kai-li Jiang, Hao Ji, Bin Tang
doaj +1 more source
Detectability models for multiple access low-probability-of-intercept networks [PDF]
, 2000 Increased demands for communications in the tactical battlefield have driven the development of multiple access low-probability-of-intercept (LPT) networks. Most detectability studies of LPI networks focus on the individual links of the network, in which
Mills, Robert F., Prescott, Glenn Eugene
core +1 more source
Experimental Demonstration of Quantum Low Probability of Intercept for Ultra-Secure Communication [PDF]
, 2023 Secure communication systems utilize encryption with shared keys between the sender and receiver of the encrypted message. For added security, the encrypted message can be hidden within a significant amount of noise so that the eavesdropper could not ...
Heyes, Jane E.
core
Radar signal recognition based on triplet convolutional neural network
EURASIP Journal on Advances in Signal Processing, 2021 Recently, due to the wide application of low probability of intercept (LPI) radar, lots of recognition approaches about LPI radar signal modulations have been proposed.
Lutao Liu, Xinyu Li
doaj +1 more source
LPI Radar Waveform Recognition Based on Multi-Resolution Deep Feature Fusion
IEEE Access, 2021 Deep neural networks are used as effective methods for the Low Probability of Intercept (LPI) radar waveform recognition. However, existing models' performance degrades seriously at low Signal-to-Noise Ratios (SNRs) because the effective features ...
Xue Ni +4 more
doaj +1 more source
Usage of Costas arrays in Low Probability of Intercept radars [PDF]
, 2015 Low Probability of Intercept (LPI) radars are used to detect targets at low distances by means of coded signals without being intercepted by hostile elements. Frequency Shift Keying (FSK) is one of the signal types used by LPI radars.
Erkan Afacan +3 more
core +1 more source