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Volume 44 Issue 6
Jun.  2022
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QI Liangang, SHEN Zhenheng, WANG Yani, GUO Qiang, Kaliuzhny Mykola. Interference Suppression Technology Based on Singular Value Decomposition of Periodic Truncated Data Matrix[J]. Journal of Electronics & Information Technology, 2022, 44(6): 2143-2150. doi: 10.11999/JEIT210397
Citation: QI Liangang, SHEN Zhenheng, WANG Yani, GUO Qiang, Kaliuzhny Mykola. Interference Suppression Technology Based on Singular Value Decomposition of Periodic Truncated Data Matrix[J]. Journal of Electronics & Information Technology, 2022, 44(6): 2143-2150. doi: 10.11999/JEIT210397

Interference Suppression Technology Based on Singular Value Decomposition of Periodic Truncated Data Matrix

doi: 10.11999/JEIT210397
Funds:  The National Key Research and Development Program (2018YFE0206500), The National Natural Science Foundation of China (62071140,62101155)
  • Received Date: 2021-05-12
  • Rev Recd Date: 2021-10-20
  • Available Online: 2021-11-04
  • Publish Date: 2022-06-21
  • The separation between the Periodic Frequency Modulation (PFM) interference and satellite navigation signal is not enough in the traditional transform domain, which causes severe satellite navigation signal degradation is suppressing interference. To solve this problem, a data rearrangement method based on period truncation is proposed. Using the periodicity of the PFM interfering signal, the energy scattered in a larger bandwidth is concentrated to a single frequency point in the rearranged data. Then, Singular Value Decomposition (SVD) is adopted to map the interference and the desired signal into different projection subspaces to eliminate the interference components. The simulation results show that the proposed method can reduce the overlap degree of the PFM interference and satellite navigation signals, and reduce the damage of satellite navigation signals.
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