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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2018> 27(4): 575-583
Yunyun Wu, Xiuli Yu, Yongqing Wang. Continuous-Wave Interference Mitigation for Acquisition Method in Unified Carrier TT&C Systems[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2018, 27(4): 575-583. doi: 10.15918/j.jbit1004-0579.17126
Citation: Yunyun Wu, Xiuli Yu, Yongqing Wang. Continuous-Wave Interference Mitigation for Acquisition Method in Unified Carrier TT&C Systems[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2018, 27(4): 575-583.doi:10.15918/j.jbit1004-0579.17126
shu

Continuous-Wave Interference Mitigation for Acquisition Method in Unified Carrier TT&C Systems

doi:10.15918/j.jbit1004-0579.17126
  • 1.

    School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China

  • 2.

    Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China

  • Received Date:2017-10-16
    Abstract
  • An interference mitigation for acquisition method, based on both energy center and spectrum symmetry detection, has been proposed as a possible solution to the problem of signal acquisition susceptibility to continuous-wave interference (CWI)in unified carrier telemetry, tracking, and command (TT&C) systems.With subcarrier modulation index as a priori condition, the existence of CWI is determined by comparing the energy center with the symmetric center.In the presence of interference, the interference frequency point is assumed and culled; sequentially, the spectral symmetry is used to verify whether the signal acquisition is realized. Theoretical analysis, simulations, and experimental results demonstrate that the method can realize the acquisition of the main carrier target signal with an interference-to-signal ratio of 31 dB, which represents an improvement over the existing continuous-wave interference mitigation for acquisition methods.
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