Results 21 to 30 of about 2,436 (164)

Generation of pseudo-random sequences for noise radar applications [PDF]

open access: yes, 2014
Noise Radar Technology (NRT) is nowadays a promising tool in radar systems. It is based on the transmission of waveforms composed of many noisy samples, which behave as LPI (Low Probability of Intercept) and antispoofing signals.
De Palo, F, Galati, G, Pavan, G
core   +1 more source

LPI Optimization Framework for Radar Network Based on Minimum Mean-Square Error Estimation

open access: yesEntropy, 2017
This paper presents a novel low probability of intercept (LPI) optimization framework in radar network by minimizing the Schleher intercept factor based on minimum mean-square error (MMSE) estimation.
Ji She   +3 more
doaj   +1 more source

Radar signal recognition based on triplet convolutional neural network

open access: yesEURASIP 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

open access: yesIEEE 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

STELLAR ORIGINS OF EXTREMELY C-13- AND N-15-ENRICHED PRESOLAR SIC GRAINS: NOVAE OR SUPERNOVAE? [PDF]

open access: yes, 2016
Extreme excesses of 13C (12C/13C < 10) and 15N (14N/15N < 20) in rare presolar SiC grains have been considered diagnostic of an origin in classical novae, though an origin in core collapse supernovae (CCSNe) has also been proposed. We report C, N, and Si
Alexander, Conel M. O'D.   +9 more
core   +5 more sources

Joint transmitter selection and resource management strategy based on low probability of intercept optimization for distributed radar networks [PDF]

open access: yes, 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.
Blair   +39 more
core   +2 more sources

Information-Theoretic Optimal Radar Waveform Selection With Multi-Sensor Cooperation for LPI Purpose

open access: yesIEEE Access, 2022
For the complex battlefield electromagnetic environment, low probability of interception (LPI) performance has become an indispensable ability for modern radars.
Jun Chen, Fei Wang, Jianjiang Zhou
doaj   +1 more source

LPI Optimization Framework for Target Tracking in Radar Network Architectures Using Information-Theoretic Criteria

open access: yesInternational Journal of Antennas and Propagation, 2014
Widely distributed radar network architectures can provide significant performance improvement for target detection and localization. For a fixed radar network, the achievable target detection performance may go beyond a predetermined threshold with full
Chenguang Shi   +3 more
doaj   +1 more source

LPI Radar Signals Modulation Recognition Based on ACDCA-ResNeXt

open access: yesIEEE Access, 2023
For low probability of intercept (LPI) radar waveform identification accuracy (ACC) problem at low Signal-to-Noise Ratios (SNRs), an approach based on time-frequency analysis (TFA) and Asymmetric Dilated Convolution Coordinate Attention Residual networks
Xudong Wang   +5 more
doaj   +1 more source

Information divergence-based low probability of intercept waveform detection for multi-antenna intercept receivers

open access: yesThe Journal of Engineering, 2019
Based on the asymptotic spectral distribution of sample covariance matrix, a new low probability of interception (LPI) signal detection method for multi-antenna intercept receiver is proposed via reforming the noise sequence into a Wishart matrix.
Jun Chen   +3 more
doaj   +1 more source

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