Results 21 to 30 of about 77,099 (257)

Waveform Selection Method of Cognitive Radar Target Tracking Based on Reinforcement Learning

open access: yesLeida xuebao, 2023
Based on the obtained knowledge through ceaseless interaction with the environment and learning from the experience, cognitive radar continuously adjusts its waveform, parameters, and illumination strategies to achieve robust target tracking in complex ...
Peikun ZHU   +3 more
doaj   +1 more source

Radar Phase-Coded Waveform Design with Local Low Range Sidelobes Based on Particle Swarm-Assisted Projection Optimization

open access: yesRemote Sensing, 2022
In modern electronic warfare, cognitive radar with knowledge-aided waveforms would show significant flexibility in anti-interference. In this paper, a novel method, named particle swarm-assisted projection optimization (PSAP), is introduced to design ...
Xiang Feng   +4 more
doaj   +1 more source

Advanced cognitive networked radar surveillance [PDF]

open access: yes2021 IEEE Radar Conference (RadarConf21), 2021
The concept of a traditional monostatic radar with co-located transmit and receive antennas naturally imposes performance limits that can adversely impact applications. Using a multiplicity of transmit and receive antennas and exploiting spatial diversity provides additional degrees of design freedom that can help overcome such limitations.
Jahangir, Mohammed   +6 more
openaire   +2 more sources

Recent Advances in Multi-radar Collaborative Surveillance: Cognitive Tracking and Resource Scheduling Algorithms

open access: yesLeida xuebao, 2023
Multi-Radar Collaborative Surveillance (MRCS) technology enables a geographically distributed detection configuration through the linkage of multiple radars, which can fully obtain detection gains in terms of spatial and frequency diversity, thereby ...
Wei YI   +5 more
doaj   +1 more source

Fuzzy Chance-constrained Programming Based Security Information Optimization for Low Probability of Identification Enhancement in Radar Network Systems [PDF]

open access: yes, 2015
In this paper, the problem of low probability of identification (LPID) improvement for radar network systems is investigated. Firstly, the security information is derived to evaluate the LPID performance for radar network.
Chen, J.   +3 more
core   +4 more sources

Extended Target Recognition in Cognitive Radar Networks

open access: yesSensors, 2010
We address the problem of adaptive waveform design for extended target recognition in cognitive radar networks. A closed-loop active target recognition radar system is extended to the case of a centralized cognitive radar network, in which a generalized ...
Xiqin Wang   +3 more
doaj   +1 more source

Efficient Waveform Design Method for Target Estimation Under the Detection and Peak-to-Average Power Ratio Constraints in Cognitive Radar

open access: yesIEEE Access, 2019
This paper addresses the waveform design problem to estimate the target impulse response (TIR) of the temporally correlated extended target in a cognitive radar, subject to a detection constraint and a peak-to-average power ratio constraint.
Tianduo Hao, Chen Cui, Yang Gong
doaj   +1 more source

Cognitive node selection and assignment algorithms for weighted cooperative sensing in radar systems [PDF]

open access: yes, 2009
For the radar spectrum to be shared efficiently a good sensing capability within a secondary cognitive communication system is required. In this paper, the swept radar's rotation mechanism is explored to improve the sensing performance.
Doufexi, A   +3 more
core   +2 more sources

Online Sequential Extreme Learning Machine-Based Active Interference Activity Prediction for Cognitive Radar

open access: yesRemote Sensing, 2022
For anti-active-interference-oriented cognitive radar systems, the mismatch between the acquired and actual interference information may result in serious degradation of cognitive anti-active-interference performance. To yield more effective knowledge of
Shanshan Wang   +3 more
doaj   +1 more source

Neural Network Component of Modern Information System on Mobile Platforms: LPI Cognitive Radar System

open access: yesКібернетика та комп'ютерні технології, 2023
The problem of building modern systems for collecting, processing and presenting information for moving platforms, characterized by the presence of a neural network with deep learning, sensors with preprocessing, systems processing and presenting ...
Mykola Kosovets, Lilia Tovstenko
doaj   +1 more source

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