Countermeasure for Interrupted-sampling Repeater Jamming based on Fractional Fourier Transformation
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. The echo signals, mixed with ISRJ, will be processed in FrFT of specific order, and th...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://doi.org/10.1051/matecconf/201823203037 |
| _version_ | 1818450345664184320 |
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| author | Liu Ming Tao Shu Chen Qingrong |
| author_facet | Liu Ming Tao Shu Chen Qingrong |
| author_sort | Liu Ming |
| collection | DOAJ |
| description | 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. The echo signals, mixed with ISRJ, will be processed in FrFT of specific order, and then a narrow band filter based on parameters of FrFT is designed to extract the target signals and suppress interference signal, so as to realize the target detection. The three kinds of models of ISRJ (ISDRJ, ISRRJ, ISCRJ) are introduced; the anti-jamming principles are analyzed and simulated. The simulation results show that, the algorithm has low complexity and takes short operation time, and it is effective in low SNR or high JSR condition. |
| first_indexed | 2024-12-14T20:49:50Z |
| format | Article |
| id | doaj.art-9437524f40cf4dd38282476cd7a51daf |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-14T20:49:50Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-9437524f40cf4dd38282476cd7a51daf2022-12-21T22:47:51ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-012320303710.1051/matecconf/201823203037matecconf_eitce2018_03037Countermeasure for Interrupted-sampling Repeater Jamming based on Fractional Fourier TransformationLiu MingTao ShuChen QingrongToday, 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. The echo signals, mixed with ISRJ, will be processed in FrFT of specific order, and then a narrow band filter based on parameters of FrFT is designed to extract the target signals and suppress interference signal, so as to realize the target detection. The three kinds of models of ISRJ (ISDRJ, ISRRJ, ISCRJ) are introduced; the anti-jamming principles are analyzed and simulated. The simulation results show that, the algorithm has low complexity and takes short operation time, and it is effective in low SNR or high JSR condition.https://doi.org/10.1051/matecconf/201823203037 |
| spellingShingle | Liu Ming Tao Shu Chen Qingrong Countermeasure for Interrupted-sampling Repeater Jamming based on Fractional Fourier Transformation MATEC Web of Conferences |
| title | Countermeasure for Interrupted-sampling Repeater Jamming based on Fractional Fourier Transformation |
| title_full | Countermeasure for Interrupted-sampling Repeater Jamming based on Fractional Fourier Transformation |
| title_fullStr | Countermeasure for Interrupted-sampling Repeater Jamming based on Fractional Fourier Transformation |
| title_full_unstemmed | Countermeasure for Interrupted-sampling Repeater Jamming based on Fractional Fourier Transformation |
| title_short | Countermeasure for Interrupted-sampling Repeater Jamming based on Fractional Fourier Transformation |
| title_sort | countermeasure for interrupted sampling repeater jamming based on fractional fourier transformation |
| url | https://doi.org/10.1051/matecconf/201823203037 |
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