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Rayleigh scattering approximation error analysis method based on VC++ and MATLAB mixed-programming technology

A technology of approximation error and analysis method, applied in special data processing applications, complex mathematical operations, instruments, etc., can solve problems such as not satisfying isotropic conditions, and achieve the effect of improving use efficiency

Inactive Publication Date: 2018-10-02
NANJING UNIV OF INFORMATION SCI & TECH
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Problems solved by technology

But the particles in the actual atmosphere do not satisfy the isotropy condition
Therefore, at present, the scattering energy distribution can only be calculated for a few particles with relatively simple geometric shapes such as spheres, cylinders, and ellipsoids through scattering theory.

Method used

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  • Rayleigh scattering approximation error analysis method based on VC++ and MATLAB mixed-programming technology
  • Rayleigh scattering approximation error analysis method based on VC++ and MATLAB mixed-programming technology
  • Rayleigh scattering approximation error analysis method based on VC++ and MATLAB mixed-programming technology

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Embodiment 1

[0090] attached Figure 4 It is the result interface diagram of Rayleigh scattering approximation error calculation in the Rayleigh scattering approximation error analysis method based on VC++ and MATLAB mixing technology in embodiment 1 of the present invention; Figure 5 It is the input interface diagram of Rayleigh scattering error approximate calculation parameters in Embodiment 1 of the present invention; Figure 6 It is the error analysis result obtained after inputting meteorological parameter data in the interface of Figure 5.

[0091] The Rayleigh scattering approximation error analysis method based on VC++ and MATLAB mixed coding technology provided by the present embodiment includes the following steps:

[0092] (1) Set up the compilation environment in Matlab, and package and compile multiple m files into dll files that can be called by vs.

[0093] (2) Build a visual window with MFC. In the single-point calculation, place edit boxes and input parameters; in err...

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Abstract

The invention relates to the field of meteorological radar technology, in particular to a Rayleigh scattering approximation error analysis method based on a VC++ and MATLAB mixed-programming technology. The Rayleigh scattering approximation error analysis method based on the VC++ and MATLAB mixed-programming technology comprises the steps that a meteorological parameter collection module is constructed; a mixed-programming interface module is constructed; and a MATLAB meteorological data calculation module is constructed. Through the method, scattering efficiency of Mie scattering and Rayleighscattering and an error between the Mie scattering and the Rayleigh scattering can be calculated directly and accurately, the method is beneficial for improving use efficiency and calculation speed,and a calculation result is visually displayed to provide reference for subsequent research.

Description

technical field [0001] The invention relates to the technical field of meteorological radar, in particular to a Rayleigh scattering approximation error analysis method based on VC++ and MATLAB mixed programming technology. Background technique [0002] When the weather radar electromagnetic waves propagate in the atmosphere, the surface of the meteorological particles irradiated by the electromagnetic waves will induce complex charge and current distribution, and this alternating charge and current distribution will radiate electromagnetic waves outward. This phenomenon is called scattering. . At the same time, electromagnetic waves propagate inside the meteorological particles. When the current flows inside the meteorological particles, part of the energy will be absorbed or converted into Joule heat, resulting in "dielectric loss", which is the absorption of incident waves by particles. Scattering causes a part of the incident wave energy to deviate from the original dire...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06F17/17
CPCG06F17/175G06F30/20
Inventor 王金虎洪海旭金子琪
Owner NANJING UNIV OF INFORMATION SCI & TECH
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