Research on simulation method for nonlinear effects of airborne SAR electromagnetic interference
Source abstract
Abstract
In order to simulate the nonlinear interference effect of high-power electromagnetic signals on airborne Synthetic Aperture Radar (SAR) imaging, the walk–stop geometric modeling of airborne SAR was established, and the range time-domain pulse coherence method was used to simulate SAR echo. By establishing a SAR receiver RF channel model, the interference mechanism of high-power electromagnetic signals is combined on RF front-end devices, the nonlinear effects on the echo signal when high-power electromagnetic signals enter the receiver are simulated, and finally the range Doppler algorithm is used to image the echo signal and the interference signal. A method for evaluating the interference effect of high-power electromagnetic signals on airborne SAR imaging using the correlation coefficient of images was proposed. The results showed that the change in the correlation coefficient of images before and after interference relative to the interference signal ratio was consistent with the image interference effect. The correlation coefficient showed a stepped trend with the change in the interference signal ratio, and there was a saturation effect after the interference effect reached a certain level.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Advanced SAR Imaging Techniques · Synthetic Aperture Radar (SAR) Applications and Techniques · Microwave Imaging and Scattering Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Army Engineering University Shijiazhuang Campus , Shijiazhuang, Hebei 050003, China
Funding
National Defense Basic Scientific Research Program of China
References (28)
Show source-provided references
1. Permafrost dynamics observatory (PDO)—Part I: Postprocessing and calibration methods of UAVSAR L-band InSAR data for seasonal subsidence estimation10.1029/2020EA001630 ↗
2. Technology and applications of UAV synthetic aperture radar system10.12000/JR16089 ↗
3. Analysis of electromagnetic pulse effects under high-power microwave sources10.1109/access.2021.3117395 ↗
4. Review of synthetic aperture radar interference suppression10.12000/JR19113 ↗
5. Impact of an electromagnetic interference on imaging capability of a synthetic aperture radar
6. Review of SAR imaging electronic countermeasures10.3969/j.issn.1003-3106.2019.06.012 ↗
7. Simulation study of noise convolution jamming countering to SAR
8. An efficient radio frequency interference mitigation algorithm in real synthetic aperture radar data10.1109/tgrs.2022.3155068 ↗
9. Jamming suppression in massive MIMO systems10.1109/tcsii.2019.2902074 ↗
10. Target reconstruction against deceptive jamming for single-channel SAR: An imagery domain approach10.1109/lgrs.2022.3152635 ↗
11. A jamming method against bistatic SAR based on modulation theory10.21629/jsee.2019.03.08 ↗
12. Jamming method of intermittent sampling against SAR-GMTI based on noise multiplication modulation10.12305/j.issn.1001-506X.2022.10.09 ↗
13. An antideceptive jamming method for multistatic synthetic aperture radar based on collaborative localization and spatial suppression10.1109/jstars.2020.2997345 ↗
14. A novel deceptive jamming method against two-channel SAR-GMTI based on two jammers10.1109/jsen.2019.2908030 ↗
15. Effect of cosinusoidal phase-modulated scatter-wave jamming to the jamming suppression of SAR dual-channel cancellation10.11834/jrs.20197114 ↗
16. High-fidelity SAR intermittent sampling deceptive jamming suppression using azimuth phase coding10.1109/lgrs.2020.2981128 ↗
17. SAR anti-jamming technique using orthogonal LFM-PC hybrid modulated signal
18. Improved active echo cancellation against synthetic aperture radar based on nonperiodic interrupted sampling modulation10.1109/jsen.2018.2824351 ↗
19. An autocorrelation-based radio frequency interference detection and removal method in azimuth-frequency domain for SAR image10.1109/jstars.2017.2775205 ↗
20. An efficient graph-based algorithm for time-varying narrowband interference suppression on SAR system10.1109/tgrs.2021.3051192 ↗
21. HRWS SAR narrowband interference mitigation using low-rank recovery and image-domain sparse regularization10.1109/tgrs.2021.3126172 ↗
22. Extraction and mitigation of radio frequency interference artifacts based on time-series sentinel-1 SAR data10.1109/tgrs.2021.3126485 ↗
23. Research on coupling effect of high-power microwave front-gate in FWCW fuze10.3969/j.issn.1000-1093.2020.05.007 ↗
24. Laws of second-order intermodulation FalseAlarm interference effect for stepped-frequency continuous wave radar underElectromagnetic radiation10.12382/bgxb.2021.0540 ↗
25. Oxidative molecular layer deposition tailoring eco-mimetic nanoarchitecture to manipulate electromagnetic attenuation and self-powered energy conversion10.1007/s40820-023-01112-7 ↗
26. Heterodimensional structure switching multispectral stealth and multimedia interaction devices10.1002/advs.202302361 ↗
27. Electrospinning and in-situ hierarchical thermal treatment to tailor C–NiCo2O4 nanofibers for tunable microwave absorption10.1016/j.carbon.2020.09.067 ↗
28. Genetic dielectric genes inside 2D carbon-based materials with tunable electromagnetic function at elevated temperature10.1002/sstr.202100104 ↗