Results 21 to 30 of about 69,790 (278)

LPI Radar Detection Based on Deep Learning Approach with Periodic Autocorrelation Function

open access: yesSensors, 2023
In electronic warfare systems, detecting low-probability-of-intercept (LPI) radar signals poses a significant challenge due to the signal power being lower than the noise power.
Do-Hyun Park   +3 more
doaj   +1 more source

Improving Signal Security of Secondary Surveillance RADAR by Using Direct Sequence Spread Spectrum Technology [PDF]

open access: yesعلوم و فنون نظامی, 2020
Secondary radars are important equipment in the aviation industry. The basis of this system is the use of the L-band Q&A system for aircraft identification.
Jafar Khalilpur, Mohammad Farahmand rad
doaj   +1 more source

Improved transmit beamforming design based on ADMM for low probability of intercept of FDA-MIMO radar

open access: yesTongxin xuebao, 2022
Considering the low probability of intercept problem that the signal-dependent interference and the target were located in the same angle, an improved transmit beamforming design based on the alternating direction method of multipliers (ADMM) was ...
Pengcheng GONG, Yuntao WU
doaj   +2 more sources

Automatic LPI Radar Waveform Recognition Using CNN

open access: yesIEEE Access, 2018
Detecting and classifying the modulation scheme of the intercepted noisy low probability of intercept (LPI) radar signals in real time is a necessary survival technique required in the electronic warfare systems. Therefore, LPI radar waveform recognition
Seung-Hyun Kong   +3 more
doaj   +1 more source

Coalition Game Theoretic Power Allocation Strategy for Multi-Target Detection in Distributed Radar Networks

open access: yesRemote Sensing, 2023
This paper studies a coalition game theoretic power allocation algorithm for multi-target detection in radar networks based on low probability of intercept (LPI).
Xiangrong Dai   +3 more
doaj   +1 more source

Filter Bank Multi-carrier Waveform Design for Low Probability of Intercepting Joint Radar and Communication System

open access: yesLeida xuebao, 2023
Cyclic prefixes in joint radar and communication systems based on Orthogonal Frequency Division Multiplexing (OFDM) and low probability of interception lead to weak radar echo masking on the battlefield.
Wanlu LI, Zheng XIANG, Peng REN
doaj   +1 more source

Hybridization of Cognitive Radar and Phased Array Radar Having Low Probability of Intercept Transmit Beamforming

open access: yesInternational Journal of Antennas and Propagation, 2014
A novel design of a cognitive radar (CR) hybridized with a phased array radar (PAR) having a low probability of intercept (LPI) transmit beam forming is proposed. PAR directed high gain property reveals its position to interceptors.
Abdul Basit   +4 more
doaj   +1 more source

Design and Processing of a Novel Chaos-Based Stepped Frequency Synthesized Wideband Radar Signal

open access: yesSensors, 2018
The linear stepped frequency and linear frequency shift keying (FSK) signal has been widely used in radar systems. However, such linear modulation signals suffer from the range–Doppler coupling that degrades radar multi-target resolution.
Tao Zeng   +3 more
doaj   +1 more source

LPI Radar Waveform Recognition Based on Hierarchical Classification Approach and Maximum Likelihood Estimation

open access: yesEntropy
The importance of information gathering is emphasized to minimize casualties and economic losses in warfare. Through electronic warfare, which utilizes electromagnetic waves, it is possible to discern the enemy’s intentions and respond accordingly ...
Kiwon Rhee   +3 more
doaj   +1 more source

Optimal Power Allocation Algorithm for Radar Network Systems Based on Low Probability of Intercept Optimization(in English)

open access: yesLeida xuebao, 2014
A novel optimal power allocation algorithm for radar network systems is proposed for Low Probability of Intercept (LPI) technology in modern electronic warfare. The algorithm is based on the LPI optimization.
Shi Chen-guang   +3 more
doaj   +1 more source

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