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研究生:賴穎儒
研究生(外文):Lai, Ying-Ju
論文名稱:基於SBR方法計算複雜模型之合成孔徑雷達回波資料
論文名稱(外文):Computation of SAR Echo Data for Complex Target by Shooting and Bouncing Ray Method
指導教授:吳宗達吳宗達引用關係
指導教授(外文):Wu, Tzong-Dar
口試委員:王萱鍢李鴻瑋程光蛟吳宗達
口試委員(外文):Wang, Hsuan-FuLee, Hung-WeiTiong, Kwong-KauWu, Tzong-Dar
口試日期:2018-07-26
學位類別:碩士
校院名稱:國立臺灣海洋大學
系所名稱:電機工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2018
畢業學年度:106
語文別:中文
論文頁數:43
中文關鍵詞:SBR合成孔徑雷達幾何光學物理光學
外文關鍵詞:SBRSARGOPO
相關次數:
  • 被引用被引用:2
  • 點閱點閱:178
  • 評分評分:
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
獲取目標或地物的電場散射資料的方法可以採用數值電磁模擬的技術,這項技包含常見的時域有限差分法 (FDTD)、動差法 (MoM)與有限元素法 (FEM),不過上述方法比較適合處理小尺寸的目標物。而在處理大尺寸目標的技術大部份的技術建立在幾何光學(GO)與物理光學近似法(PO),融合這兩種方法並考量多次反射之SBR方法成為大尺寸目標物常見的方法,這些方法皆有昂貴之商用套裝軟體,自行開發SBR方法的好處在於可透過模擬過程,了解與估計微波影像中目標區內散射機制的主要成份與強散射點對應位置,對目標環境回波訊號之特性分析將有所助益。
本研究實驗了由簡單到複雜實驗的許多模型,得到結果也相當合理,因此能運用在合成孔徑雷達成像系統。
The method of obtaining the electric field scattering data of the target or the feature can use the numerical electromagnetic simulation technique, which includes the Finite-Difference Time-Domain (FDTD), the Method of Moments (MoM) and the Finite Element Method (FEM), but the above The method is more suitable for processing small size targets. Most of the techniques for processing large-size targets are based on Geometric Optics (GO) and Physical Optics approximation (PO). The SBR method that combines these two methods and considers multiple reflections becomes a common target for large-size targets. These methods all have expensive commercial software packages. The advantage of developing the SBR method is that the simulation process can be used to understand and estimate the position of the main components of the scattering mechanism in the target area and the strong scattering point in the microwave image. It is helpful to analyze the characteristics of the wave signal.
This study has experimented with many models from simple to complex experiments, and the results are quite reasonable, so it can be applied to SAR imaging systems.
摘要 I
Abstract II
致謝 III
目次 IV
圖次 V
表次 VII
第一章 序論 1
1.1 研究背景 1
1.2 研究動機 2
1.3 研究開發平台介紹 2
1.4 論文整體架構 3
第二章 SBR理論架構 4
2.1 SBR適用條件 4
2.2 光線追蹤法(Ray Tracing) 5
2.3 電磁場計算方法 7
2.4 物理光學近似方法 9
第三章 簡單RCS模擬結果驗證與討論 12
3.1正方型平板(Square plate) 13
3.2 二面角反射器(Dihedral Corner Reflector) 16
3.3 三面角反射器(Trihedral Corner Reflector ) 22
第四章 大面積相對複雜幾何模型與時域驗證模擬 25
4.1 Cone-sphere 26
4.2 磚塊模型 28
4.3 炮塔模型 30
4.4 飛機模型 32
第五章 結論與未來展望 36
5.1 結論 36
5.2 未來展望 37
參考文獻 40
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