Results 181 to 190 of about 71,586 (234)

Automatic Waveform Recognition of Overlapping LPI Radar Signals Based on Multi-Instance Multi-Label Learning

IEEE Signal Processing Letters, 2020
In an ever-increasingly complex electromagnetic environment, multiple low probability of intercept (LPI) radar emitters may transmit their own signals simultaneously on similar bands, resulting in overlapping receiving signals in both time and frequency ...
Zesi Pan, Shafei Wang, Mengtao Zhu, Yunjie Li   +3 more
semanticscholar   +1 more source

LPI Radar Signals Modulation Recognition in Complex Multipath Environment Based on Improved ResNeSt

IEEE Transactions on Aerospace and Electronic Systems
Low probability of intercept (LPI) radar has played an important role in in modern radar systems due to its difficulty in being intercepted by noncooperative interceptors.
Binbin Chen, Xudong Wang, Daiyin Zhu, He Yan, Guiguang Xu, Ying Wen   +5 more
semanticscholar   +1 more source

Power Allocation for Radar Tracking With LPI Constraint and Suppressive Jamming Threat

IEEE Transactions on Aerospace and Electronic Systems
In the electronic countermeasures environment, efficient power allocation is the key to guaranteeing the radar tracking accuracy, an unreasonable power may result in the radar transmit pulse being intercepted by the electronic reconnaissance receiver ...
Longxiao Xu, Tianxian Zhang, Zhijie Ma, Yuanhang Wang   +3 more
semanticscholar   +1 more source

Reinforcement-Learning-Enhanced Adaption of Signal Power and Modulation for LPI Radar System

IEEE Transactions on Aerospace and Electronic Systems
Effective implementation of low probability of intercept (LPI) techniques is crucial for enhancing the survivability of radar systems in electronic warfare scenarios.
Ye Yuan, Xinyu Liu, Tianxian Zhang, Guolong Cui, L. Kong   +4 more
semanticscholar   +1 more source

LPI-CNNCP: Prediction of lncRNA-protein interactions by using convolutional neural network with the copy-padding trick.

Analytical Biochemistry, 2020
Long noncoding RNAs (lncRNAs) play critical roles in many pathological and biological processes, such as post-transcription, cell differentiation and gene regulation.
Shaowu Zhang, Xi-Xi Zhang, Xiaonan Fan, Wei-Na Li   +3 more
semanticscholar   +1 more source

Interception of LPI radar signals

IEEE International Conference on Radar, 2002
The interception problem is reviewed, an LPI radar design is examined and the performance of intercept receivers of the future is considered. The receiver needed to intercept LPI signals must respond across a broad band and provide noncoherent integration capabilities over times comparable to the coherent (or noncoherent) integration times used by ...
G. Schrick, R.G. Wiley
openaire   +1 more source

LPI Optical Communication System

MILCOM 1984 - IEEE Military Communications Conference, 1984
An optical communication system based on the use of the GaAs laser diode as the light source has been developed and demonstrated. The system uses one inch transmit optics to provide a beam-width of about 18 mrad and has a receive field of view of about 35 mrad with 2 inch optics.
J.D. Barry, G.S. Mecherle
openaire   +1 more source

LPI/LPD Detection Sensitivity Limitations

2014 IEEE Military Communications Conference, 2014
LPI/LPD (Low Probability of Intercept/Low Probability of Detection) analyses typically follow the original work of Urkowitz [1] to obtain probability of detection for a specified false alarm rate. Such analyses are based on a uniform time invariant noise background.
R.B. Dybdal, K.M. Soohoo
openaire   +1 more source

Meteor burst communications LPI applications

IEEE Conference on Military Communications, 2002
A technique that enhances the performance of meteor-burst communications is described. The technique, the feedback adaptive variable rate (FAVR) system, maintains a feedback channel that allows the transmitted bit rate to mimic the time behavior of the received power so that a constant bit energy is maintained. This results in a constant probability of
D.L. Schilling, T. Apelewicz, G.R. Lomp, L.A. Lundberg   +3 more
openaire   +1 more source

LPI Beamforming Based on 4-D Antenna Arrays With Pseudorandom Time Modulation

IEEE Transactions on Antennas and Propagation, 2020
Traditional low probability of interception (LPI) design methods are mainly focused on the LPI waveform design. As a matter of fact, array design can also improve the LPI performance and is compatible with waveform design.
Kejin Chen, Shiwen Yang, Yikai Chen, Deqiang Yang, Ming Huang, Shiwei Qu, Jun Hu   +6 more
semanticscholar   +1 more source