受信電界強度からの修正屈折率Nの推定

概要

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An estimate method of the refractive index distribution is suggested from the height gain profile of the received electric field strength which is generated due to the inverted atmosphere as a surface-based duct or an elevated duct. First of all, an initial value of refractive index distribution is given by applying the height gain profile in the wave equation. Next, the height gain profile at other spot is derived from both the received electric field and this refractive index using split-step method, and the refractive index distribution is modified by comparing it with the height gain profile measured at the spot Bilinear model is adopted as the atmosphere model to evaluate the calculation method of this refractive index, and numerical examples of the refractive index distribution to be derived from the altitude distribution of the received electric field with each model are presented, and are considered simultaneously.
明治大学の論文