无线电工程与光学系统中电磁场与相干图像的现象学描述

V. Volosyuk, V. Pavlikov, S. Zhyla
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引用次数: 11

摘要

分析了标量衍射理论的基本原理和从表面电磁场出发计算体积内任意点电磁场的基本定理。分析表明,实际地表空间分布边界条件的具体化使衍射问题的求解变得相当复杂。提出了电磁场配准领域的现象学描述。给出了从菲涅耳区接收场恢复遥感相干图像的实例。得到的相干图像结构复杂,不仅需要考虑Riemann积分的形式,还需要考虑Lebesgue积分、Stieltjes积分和随机Ito积分。
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Phenomenological Description of the Electromagnetic Field and Coherent Images in Radio Engineering and Optical Systems
The basic principles of the scalar diffraction theory and the fundamental theorems of electromagnetic field calculation at any point in the volume from the field stated on the surface are analyzed. It follows from the analysis that the concretization of spatially-distributed boundary conditions for real earth surfaces considerably complicates the solution of diffraction problems. It is proposed to use the phenomenological description of electromagnetic fields in the domain of their registration. Examples of restoration of coherent images from the received fields in the Fresnel zone for remote sensing problems are give. The complex structure of the obtained coherent images requires their consideration not only in the form of Riemann integrals, but also as the Lebesgue, Stieltjes integrals, and the stochastic Ito integral.
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