Time-Frequency Processing of Scattering Responses from a Dielectric Sphere

• NISHIMOTO Masahiko

  the Department of Electrical and Computer Engineering, Kumamoto University

• IKUNO Hiroyoshi

  the Department of Electrical and Computer Engineering, Kumamoto University

抄録

Scattering responses from a dielectric sphere are analyzed in the time-frequency domain by using two types of wavelet transform in order to reveal the scattering mechanisms. In the resulting time-frequency displays, various scattering processes including reflection, refraction, and diffraction can be clearly resolved and identified. The delay time of each scattering process agrees well with that obtained by the ray theory. Furthermore, the natural frequencies that are not easy to extract by the conventional Fourier analysis can be extracted.

収録刊行物

• IEICE transactions on electronics

  IEICE transactions on electronics 84 (9), 1256-1259, 2001-09-01

  一般社団法人電子情報通信学会

キーワード

• wavelet analysis
• wavelete transform
• time-frequency analysis
• scattering process

詳細情報

• CRID: 1570009752558953472
• NII論文ID: 110003212306
• NII書誌ID: AA10826283
• ISSN: 09168524
• 本文言語コード: en
• データソース種別:
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