V2EX electromagnetic-scattering

Electromagnetic Scattering

释义 Definition

电磁散射:当电磁波(如光、无线电波、微波)遇到物体、粒子或介质中的不均匀结构时,能量会被迫改变传播方向并向各个方向重新辐射的现象。常用于描述雷达探测、光学成像、天线测量、大气与海洋遥感等中的“波如何被目标散开”。(在不同语境下也可细分为弹性散射、非弹性散射等。)

发音 Pronunciation (IPA)

/lktrmntk sktr/

例句 Examples

Electromagnetic scattering affects how clearly the radar can detect an airplane.
电磁散射会影响雷达探测飞机的清晰程度。

By modeling electromagnetic scattering from rough surfaces, engineers can estimate signal loss and improve wireless coverage in cities.
通过对粗糙表面的电磁散射进行建模,工程师可以估算信号损耗并改进城市无线覆盖。

词源 Etymology

该短语由两部分组成:electromagnetic(“电磁的”)来自 electric(电的)与 magnetic(磁的)的组合,反映电与磁的统一理论;scattering 源自动词 scatter(使分散、撒开),强调“入射波被目标作用后向多方向分散”的结果。合起来即“电磁波的分散/散开现象”。

相关词 Related Words

文献与作品 Literary / Notable Works

  • Absorption and Scattering of Light by Small Particles(Bohren & Huffman):系统讨论光与微粒相互作用与散射理论。
  • Scattering of Electromagnetic Waves(Tsang, Kong 等):经典教材/专著,广泛使用并解释“electromagnetic scattering”。
  • Wave Propagation and Scattering in Random Media(Akira Ishimaru):在随机介质中波传播与散射的权威著作。
  • Principles of Optics(Born & Wolf):光学基础名著,涉及多种散射与衍射相关框架。
  • Classical Electrodynamics(J. D. Jackson):电动力学经典教材,包含与电磁波散射相关的推导与讨论。
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