SAR raw signal simulation for urban structures

被引：105

作者：

Franceschetti, G ^{[1
]}

Iodice, A ^{[1
]}

Riccio, D ^{[1
]}

Ruello, G ^{[1
]}

机构：

[1] Univ Naples Federico II, Dipartimento Ingn Elettron & Telecommun, I-80125 Naples, Italy

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2003年 / 41卷 / 09期

关键词：

buildings; radar scattering; synthetic aperture radar (SAR); urban areas; simulation;

D O I：

10.1109/TGRS.2003.814626

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

In this paper, a synthetic aperture radar (SAR) raw signal simulator for urban scenes is presented along with models it employs to,compute the backscattered field and to account for the imaging radar. sensor characteristics. Urban areas are represented as a set of dielectric buildings placed over a random rough nonflat dielectric terrain. The adopted models allow evaluation of the raw signal on a sound physical and mathematical background: the scattering model employs the Kirchhoff approach appropriately extended to include multiple-reflection effects, and the radar model operates in the two-dimensional Fourier transformed domain. Details to assess how and why the simulator is also efficient with respect to the computational time are provided. In addition, relevant examples are discussed to show the simulator potentialities and assess the validity of the main results. It is shown that the simulator is able to quantitatively assess performances of SAR sensors over urban structures. The proposed simulator turns out to be also useful to train numerical schemes devoted to feature extraction, and to test any specific SAR processing technique. Comments for further developments of the simulation tool are presented.

引用

页码：1986 / 1995

页数：10

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