Distribution description method of coupled scattering source between target and rough surface
A technology of scattering source and rough surface, which is applied in the field of distribution description of target and rough surface coupling scattering source, can solve the problem of not including target and background coupling scattering source, and achieve the effect of fast simulation
Active Publication Date: 2021-07-20
SHANGHAI RADIO EQUIP RES INST
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[0005] The ray tracing-based diagnosing method of the source of the scattering center used in the prior art can directly correlate the scattering source information with the target grid. Although the result is intuitive, this method only obtains the target scattering source and does not include the coupling between the target and the background. Scattering source
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[0035] The following combination Figure 1 ~ Figure 3 , the technical content, structural features, achieved goals and effects of the present invention will be described in detail through preferred embodiments.
[0036] like figure 1 As shown, the method for describing the distribution of the target and the rough surface coupled scattering source provided by the present invention includes the following steps:
[0037] S1. Analyze the complex scattering geometric relationship between the target and the rough surface;
[0038] S2. Describe the distribution shape of the coupling scattering source between the target and the rough surface;
[0039] S3. Describe the distribution direction of the coupling scattering source between the target and the rough surface;
[0040] S4. Calculate the offset of the horizontal position of the near-field coupling scattering source between the target and the rough surface.
[0041] The S1, as figure 2 As shown, let the incident angle be θ, a...
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The invention relates to a method for describing the distribution of scattering sources coupled to a target and a rough surface, comprising the following steps: S1, analyzing the composite scattering geometric relationship between the target and the rough surface; S2, analyzing the distribution shape of the coupling scattering sources between the target and the rough surface Description; S3. Describe the distribution direction of the coupling scattering source between the target and the rough surface; S4. Calculate the offset of the horizontal position of the near-field coupling scattering source between the target and the rough surface. The invention provides a method for describing the linear broadening and near-field position offset of the coupled scattering source in the compound scattering of the target and the rough surface; since the linear dip angle of the linear broadening distribution is approximately the same as the incident angle, it can be used for the target and the ground-sea environment The rapid simulation of composite scattered radar echo signals provides the basis and support.
Description
technical field [0001] The invention relates to a distribution description method, in particular to a distribution description method of a target and a rough surface coupled scattering source, and belongs to the technical field of target and environment characteristics. Background technique [0002] Due to the large electrical size of the target and the rough surface, and the abundant multiple scattering mechanisms, the complex electromagnetic scattering problem is a difficult point in the calculation of electromagnetic scattering, and there have always been problems such as slow calculation speed and difficulty in calculating the large size of the high-frequency band. Therefore, studying the characteristics of the coupling scattering source between the target and the rough surface and establishing its distribution model can provide effective support for the rapid simulation of the complex scattering radar echo between the target and the background. [0003] The method used ...
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IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 高鹏程梁子长顾丹丹冯明
Owner SHANGHAI RADIO EQUIP RES INST