Results 21 to 30 of about 69,753 (155)

An Improved Anti-Jamming Method Based on Deep Reinforcement Learning and Feature Engineering

open access: yesIEEE Access, 2022
To improve the performance of anti-jamming communication in dynamic and adversarial jamming environment, an improved anti-jamming method is proposed based on deep reinforcement learning and feature engineering.
Xin Chang   +4 more
doaj   +1 more source

The influence of three-aircraft formation blinking jamming on the performance of ground monopulse radar

open access: yesAIP Advances, 2023
The purpose of this study is to evaluate the jamming effectiveness evaluation against monopulse radar when using a non-coherent blinking jamming model at regular intervals based on three aircraft flight trajectories. To begin, the formation trajectory is
Zhaozheng Liu   +4 more
doaj   +1 more source

DRFM-Based Repeater Jamming Reconstruction and Cancellation Method with Accurate Edge Detection

open access: yesRemote Sensing, 2023
Digital radio frequency memory (DRFM) based repeater jamming can create false targets, which can lead to a loss of situational awareness, misidentification of targets, and decreased overall performance of the radar system. Traditional jamming suppression
Bowen Han   +4 more
doaj   +1 more source

Performance Analysis of Multiple Antennas Synthetic False Target Jamming

open access: yesIEEE Access, 2022
The radar jamming technology has been studied in this paper mainly, which uses the antenna synthetic wave to generate phase distortion at the signal reception to carry out angle measuring jamming, such as traditional cross-eye jamming. However, cross-eye
Yuhang Ning, Mengxia Yu
doaj   +1 more source

Research on the Compound Jamming Method against FDA-MIMO Beamforming

open access: yesApplied Sciences, 2022
Frequency diverse array multiple-input multiple-output (FDA-MIMO) radar solves the problem of angle pointing and range pointing during beam transmission due to its unique range-angle dimension dependent, which gives it good characteristics against main ...
Yang Chen   +4 more
doaj   +1 more source

Study on the Effective Region of Active Decoy Jamming to SAR Based on Time-delay Doppler-shift Method

open access: yesLeida xuebao, 2013
The active decoy jamming to SAR based on the Time-Delay Doppler-Shift (TDDS) method takes effect in certain region. Proper utilization of jamming ensuring decoy quality is based on the study of the effective region. After the mathematical analysis of the
Liu Yong-cai   +3 more
doaj   +1 more source

A Smart Noise Jamming Suppression Method Based on Atomic Dictionary Parameter Optimization Decomposition

open access: yesRemote Sensing, 2022
Smart noise jamming is a new jamming style against radar, which plays an important role in modern radar electronic warfare. In order to solve the complex problem of convolutional smart noise jamming suppression with different time delay and jamming ...
Zhidong Liu, Qun Zhang, Kaiming Li
doaj   +1 more source

Interrupted-Sampling Repeater Jamming-Suppression Method Based on a Multi-Stages Multi-Domains Joint Anti-Jamming Depth Network

open access: yesRemote Sensing, 2022
Jamming will seriously affect the detection ability of radar, so it is essential to suppress the jamming of radar echoes. Interrupted-sampling repeater jamming (ISRJ) based on a digital-radio-frequency-memory (DRFM) device can generate false targets at ...
Xuesi He   +4 more
doaj   +1 more source

Radar Anti-Jamming Decision-Making Method Based on DDPG-MADDPG Algorithm

open access: yesRemote Sensing, 2023
In the face of smart and varied jamming, intelligent radar anti-jamming technologies are urgently needed. Due to the variety of radar electronic counter-countermeasures (ECCMs), it is necessary to efficiently optimize ECCMs in the high-dimensional ...
Jingjing Wei   +3 more
doaj   +1 more source

Countermeasures for range false target jamming based on quasi Karhunen-Loève translate basis dictionary learning method

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectivesWaveform diversity technology is an effective anti-jamming measure against range false target jamming. However, in an environment of strong energy jamming, the high side-lobe caused by the jamming signal mismatch will still affect the detection
Lexin YU   +3 more
doaj   +1 more source

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