Results 31 to 40 of about 1,581 (275)

Pulse Nanosecond Emitter for High Resolution Optical Radars [PDF]

open access: yes2019 XXI International Conference Complex Systems: Control and Modeling Problems (CSCMP), 2019
The aim of the work is to create a miniature pulse optical emitter on an infrared laser diode with a pulse duration of the order of 1 ns and a pulse power of more than 30 W based on the effect of high-efficiency avalanche switching in bipolar silicon transistors. An optical emitter that can improve the accuracy of optical radar operation up to 10 times
Filimonov, A. (Alexey)   +4 more
openaire   +2 more sources

Identification of Radar Emitter Type with Recurrent Neural Networks

open access: yes, 2022
S.21-25In this paper, we present a method for the identification of different multifunction radar emitter types. It is based on Long Short-Term Memory recurrent neural networks and a previously published hierarchical modelling approach.
Apfeld, S., Charlish, A., Ascheid, G.
core   +1 more source

Multi-Band Passive Radar Imaging Using Satellite Illumination

open access: yes, 2022
S.7-12Over the last years the interest has grown over imaging capabilities of passive radars. In particular, the MAPIS (Multi-chAnnel Passive ISAR for military application) project funded by EDA (european defence agency) has shown the potential of ISAR ...
Cristallini, D.   +2 more
core   +2 more sources

Research on modern radar emitter modelling technique under complex electromagnetic environment

open access: yesThe Journal of Engineering, 2019
Since many modern multi-functional radars emitting dense complex signals are applied in the complex electromagnetic environment, it is challenge to classify and identify the radar emitters in the electronic reconnaissance field.
Chunhong Zhang   +4 more
doaj   +1 more source

A Unified Method for Deinterleaving and PRI Modulation Recognition of Radar Pulses Based on Deep Neural Networks

open access: yesIEEE Access, 2021
In the modern electronic warfare signal environment, multiple radar signals of high density are mixed and received, and separating them into signals for each emitter is an essential step for emitter identification. Each radar has its own pulse repetition
Jin-Woo Han, Cheong Hee Park
doaj   +1 more source

Experimental Study of Maritime Moving Target Detection Using Hitchhiking Bistatic Radar

open access: yesRemote Sensing, 2022
Hitchhiking bistatic radar system takes the direct wave signal that is transmitted by the non-cooperative radar emitter as the reference to detect and analyze the target echo signal, so as to realize the positioning and tracking of the target. This radar
Jie Song   +3 more
doaj   +1 more source

Radar emitter intrapulse signal blind sorting under modified wavelet denoising

open access: yesThe Journal of Engineering, 2019
With the electromagnetic environment becoming more and more complex and the analysis demand of the radar emitter intropulse signal presenting more and more urgent, a modified method of the radar emitter intrapulse signal blind sorting under wavelet ...
Xuebao Wang   +5 more
doaj   +1 more source

IRelNet: An Improved Relation Network for Few-Shot Radar Emitter Identification

open access: yesDrones, 2023
In future electronic warfare (EW), there will be many unmanned aerial vehicles (UAVs) equipped with electronic support measure (ESM) systems, which will often encounter the challenge of radar emitter identification (REI) with few labeled samples.
Zilong Wu, Meng Du, Daping Bi, Jifei Pan
doaj   +1 more source

Recognition of Radar Emitters with Agile Waveform Based on Hybrid Deep Neural Network and Attention Mechanism [PDF]

open access: yesRadioengineering, 2021
With the increasing complexity of the electromagnetic environment and the continuous development of radar technology, more and more modern digital programmable radars using agile waveform will appear in the future battlefield.
Y. Feng   +6 more
doaj  

Deinterleaving RADAR Emitters With Optimal Transport Distances

open access: yesIEEE Transactions on Aerospace and Electronic Systems
Detection and identification of emitters provide vital information for defensive strategies in electronic intelligence. Based on a received signal containing pulses from an unknown number of emitters, this paper introduces an unsupervised methodology for deinterleaving RADAR signals based on a combination of clustering algorithms and optimal transport ...
Manon Mottier   +2 more
openaire   +2 more sources

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