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Frequency refinement technology for low frequency electromagnetic signals

  • 2013-09-22
  • 648.88KB
  • Points it Requires : 2

This paper proposes a frequency refinement technique based on the fast Fourier transform algorithm. Through complex modulation frequency refinement, a local spectrum is amplified so that the spectrum of low-frequency electromagnetic signals can be analyzed quickly and accurately. Using the complex modulation frequency refinement method, Matlab simulation of low-frequency electromagnetic signals is performed, and the simulation results show that this method is more effective and feasible than the linear frequency modulation Z transform algorithm.

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