Results 21 to 30 of about 170 (99)
Countermeasure for Interrupted-sampling Repeater Jamming based on Fractional Fourier Transformation
MATEC Web of Conferences, 2018 Today, the interrupted-sampling repeater jamming (ISRJ) has posed a serious threat to LFM radars. In this paper, a countermeasure to suppressing ISRJ based on fractional Fourier transformation (FrFT) is presented.
Liu Ming, Tao Shu, Chen Qingrong
doaj +3 more sources
Orthogonal phase-frequency coded signal in a pulse against interrupted sampling repeater jamming
The Journal of Engineering, 2019 Interrupted sampling repeater jamming (ISRJ) uses the under sampling technology to transmit and repeat the radar intercepted signals. As a new kind of coherent interference, it is widely used in self-defence interference.
Zhifeng Ren, Miao Jiang, Lei Zhang
doaj +3 more sources
IET Radar, Sonar & Navigation, 2022 Research on the anti‐jamming target detection for pulsed Doppler (PD) radar is intensively important to the normal work of radar in complicated and volatile electromagnetic environments.
Yu Zhang +4 more
doaj +2 more sources
A Novel Interference Suppression Method for Interrupted Sampling Repeater Jamming Based on Singular Spectrum Entropy Function [PDF]
Sensors, 2019 As a new type of jamming, the interrupted sampling repeater jamming (ISRJ) derived from the digital radio frequency memory (DRFM) technology, can generate coherent multiple false targets after pulse compression.
Muyao Yu +3 more
doaj +2 more sources
Anti-ISRJ Method Based on Intrapulse Frequency-coded Joint Frequency Modulation Slope Agile Radar Waveform [PDF]
Leida xuebaoInterrupted Sampling Repeater Jamming (ISRJ) is a type of intrapulse coherent jamming that can form multiple realistic false targets that lead or lag behind the actual target, severely affecting radar detection.
Xiaoge WANG +5 more
doaj +3 more sources
Mathematic principles of interrupted-sampling repeater jamming (ISRJ)
Science in China Series F: Information Sciences, 2007 Coherent jamming is one of the important trends in modern radar electronic war-fare. High-speed sampling of wideband radio frequency (RF) signals and high iso-lation of two receive-transmit antennas are key technologies for the realization of coherent jamming. However, these technologies present significant challenges to engineering application.
D. C. Schleher +11 more
core +2 more sources
EURASIP Journal on Advances in Signal ProcessingInterrupted-sampling repeater jamming (ISRJ) is a type of intra-pulse coherent jamming that poses a significant threat to radar detection and tracking of targets. This paper proposes an ISRJ suppression method based on frequency agile waveform and sparse
Yunhao Ji, Shan Wei, Yaobing Lu
doaj +2 more sources
IET Radar, Sonar & NavigationInterrupted sampling repeater jamming (ISRJ) with flexible modulation parameters and coherent processing gain seriously threatens the radar detection system.
Yunyun Meng, Lei Yu, Yinsheng Wei
doaj +2 more sources
Analysis of the Influence of Distributed Interrupted-sampling Repeating Signals on Airborne Interferometer Parameter Measurements [PDF]
Leida xuebaoIn the context of counter-reconnaissance against airborne interferometers, this study proposes a jamming method designed to disrupt the parameter measurement capabilities of interferometers by generating distributed signals based on an interrupted ...
Yingfu WANG +4 more
doaj +3 more sources
IET Radar, Sonar & NavigationInterrupted sampling repeater jamming (ISRJ), as a typical intra‐pulse coherent interference, seriously endangers the performance of radar. To effectively suppress ISRJ, the paper proposes an ISRJ suppression algorithm combines grey entropy with ...
Jun Luo +5 more
doaj +2 more sources