研究目的
To propose a single scattering coplanar model for short-range ultraviolet communication (UVC) channel modeling based on a spherical coordinate system, enabling arbitrary transmitter and receiver orientations under specific geometric constraints, and to validate this model against existing models.
研究成果
The proposed spherical coordinate-based model for short-range UVC channel modeling effectively estimates path loss and aligns well with existing single scattering and Monte Carlo models. It provides a comprehensible method for scenario classification and offers guidelines for experimental design, though it is limited to specific geometric conditions and single scattering assumptions.
研究不足
The model assumes single scattering and coplanar geometry, with constraints that the sum of elevation angles and half FOVs is less than 180° and both are above ground. It does not account for multiple scattering effects, which become significant at longer distances, and has higher computational complexity than some approximate models.
1：Experimental Design and Method Selection:
The study involves deriving a mathematical model for path loss in UVC using spherical coordinates, with constraints on elevation angles and FOV. It includes numerical calculations for validation.
2：Sample Selection and Data Sources:
No physical samples or datasets are used; the work is theoretical with numerical simulations based on defined parameters.
3：List of Experimental Equipment and Materials:
No physical equipment is mentioned; the model is computational.
4：Experimental Procedures and Operational Workflow:
The derivation includes defining geometric parameters, classifying UVC scenarios based on ray intersections, and integrating energy equations. Numerical calculations compare path loss with existing models (Luettgen model and Monte Carlo simulation).
5：Data Analysis Methods:
Path loss is computed using derived integrals and compared through numerical simulations; parameters include extinction coefficients, phase functions, and geometric angles.
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