研究目的
To reconstruct the resonance frequency of cold unmagnetized plasma medium using CDLT-FDTD and PSO methods, comparing the accuracy and efficiency of Fourier series expansion method versus the traditional direct method.
研究成果
The proposed parameter reconstruction method combining CDLT-FDTD with PSO algorithm based on Fourier series expansion effectively reconstructs the resonant frequency of cold unmagnetized plasma with better accuracy and fewer unknowns than the traditional direct method.
研究不足
The study focuses on one-dimensional cold unmagnetized plasma, and the applicability to more complex or higher-dimensional scenarios is not explored.
1：Experimental Design and Method Selection:
The study combines CDLT-FDTD algorithm with PSO algorithm for parameter reconstruction, comparing Fourier series expansion method with traditional direct method.
2：Sample Selection and Data Sources:
The cold unmagnetized plasma reconstruction region is divided into 20 grids. The excitation source is a modulated Gauss pulse.
3：List of Experimental Equipment and Materials:
Not explicitly mentioned.
4：Experimental Procedures and Operational Workflow:
The simulation involves one excitation point and two receive observation points, with parameters reconstructed using both methods.
5：Data Analysis Methods:
The cost function is used to evaluate the reconstruction accuracy, comparing the proposed method with the direct method.
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