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2019-07-22
A Space-Frequency Anti-Jamming Algorithm Based on Sub-Band Energy Detection
By
Progress In Electromagnetics Research M, Vol. 83, 73-82, 2019
Abstract
For most of space-frequency joint anti-jamming algorithms, the solution of adaptive steering vector is a high complexity problem. To solve this issue, a space-frequency combined anti-jamming algorithm based on sub-band energy detection (SF-SED) is proposed. At first, the algorithm performs fast Fourier transform (FFT) on the received data of the array antenna and obtains multi-snapshot data of each sub-band through sub-band decomposition. Then, the interference detection statistic and decision threshold are constructed by the energy of the sub-band to judge whether there is an interference in each sub-band. Finally, different methods are used to solve the adaptive weights of the two types of sub-bands according to sub-band classification results. Compared with the related work, the proposed algorithm not only has lower computational complexity, but also has higher output signal-to-interference-and-noise ratio. Theoretical analysis and simulation results demonstrate the anti-jamming performance of the proposed method.
Citation
Ruiyan Du Jiaqi Yang Lei Liu Fulai Liu Hui Song , "A Space-Frequency Anti-Jamming Algorithm Based on Sub-Band Energy Detection," Progress In Electromagnetics Research M, Vol. 83, 73-82, 2019.
doi:10.2528/PIERM19051601
http://www.jpier.org/PIERM/pier.php?paper=19051601
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