Irregular terrain radio wave propagation factor prediction method based on three-dimensional parabolic equation
A parabolic equation, radio wave propagation technology, applied in electrical digital data processing, image data processing, special data processing applications, etc., can solve problems such as limited prediction accuracy, achieve high versatility, wide engineering application scope, and extended application scope Effect
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[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0036] refer to figure 1 , a method for predicting the propagation factor of radio waves in irregular terrain based on the three-dimensional parabolic equation, including the following steps:
[0037] Step 1) Establish a Cartesian coordinate system in the prediction area. Since the traditional digital map cannot describe the irregular undulating plane, the digital elevation map is used to establish a three-dimensional irregular terrain geometric model, and the digital elevation map modeling file is obtained. The implementation steps are:
[0038] Step 1a) In the three-dimensional parabolic equation model, the subdivision steps in the x direction and the y direction are very different. Therefore, a two-dimensional non-uniform grid is used to cover the three-dimensional irregular terrain, and the height value of each grid node is obtain...
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