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Content Provider | IET Digital Library |
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Author | Han, Bowen Yang, Xiaopeng Wu, Xuchen Li, Shuai |
Abstract | Smart noise jamming based on digital radio frequency memory (DRFM) has both oppressive jamming effect and deceptive jamming effect, and it is difficult to be effectively suppressed by traditional anti-jamming methods. In order to solve this problem, an anti-jamming method for linear frequency modulation (LFM) pulse compression radar system is proposed. The proposed method is combined with fractional Fourier transform (FrFT) and fractional domain filtering strategy. Here, first, the FrFT transform is performed on the received signal, and the optimal transform angle is calculated by calculating the fractional fourth-order origin moment. Then, the narrow-band filter is performed in the fractional domain to extract the target signal and suppress the jamming signal. Finally, fractional Fourier inverse transform is done to restore the target signal. The simulation results show that the method not only can effectively suppress smart noise jamming but also can accurately detect the position of the target. |
Starting Page | 6201 |
Ending Page | 6205 |
Page Count | 5 |
Volume Number | 2019 |
e-ISSN | 20513305 |
Issue Number | Issue 19, Oct (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/19 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0270 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2019-05-30 |
Access Restriction | Open |
Rights License | Creative Commons Attribution-Non Commercial-No Derivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/) |
Subject Keyword | Anti-jamming Method Deceptive Jamming Effect Digital Radio Digital Radio Frequency Memory Electromagnetic Compatibility Fast Fractional Filtering Filtering Method in Signal Processing Filtering Theory Fourier Transforms Fourth-order Origin Moment Fractional Domain Fractional Fourier Inverse Frequency Modulation FrFT Transform Integral Transforms Interference Interference Suppression Jamming Jamming Signal Linear Frequency Modulation Pulse Compression Radar System Narrow-band Filter Oppressive Jamming Effect Optimal Transform Angle Pulse Compression Radar Equipment Radar Signal Processing Signal Processing And Detection Smart Noise Jamming Suppression Method System And Application Target Signal Traditional Anti-jamming Method |
Content Type | Text |
Resource Type | Article |
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