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Detail
Journal Article
Estimation of Incoherent Scattered Field by Multiple Scatterers in Random Media
- Authors
- Dong-Wook Seo, Jae-Ho Lee, Hyung Soo Lee
- Issue Date
- 2016-02
- Citation
- ETRI Journal, v.38, no.1, pp.141-148
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- This paper proposes a method to estimate directly the incoherent scattered intensity and radar cross section (RCS) from the effective permittivity of a random media. The proposed method is derived from the original concept of incoherent scattering. The incoherent scattered field is expressed as a simple formula. Therefore, to reduce computation time, the proposed method can estimate the incoherent scattered intensity and RCS of a random media. To verify the potential of the proposed method for the desired applications, we conducted a Monte-Carlo analysis using the method of moments; we characterized the accuracy of the proposed method using the normalized mean square error (NMSE). In addition, several medium parameters, such as the density of scatterers and analysis volume, were studied to understand their effect on the scattering characteristics of a random media. The results of the Monte-Carlo analysis show good agreement with those of the proposed method, and the NMSE values of the proposed method and Monte-Carlo analysis are relatively small at less than 0.05.
- KSP Keywords
- Effective Permittivity, Method of moments(MOM), Monte Carlo analysis, Normalized mean square error, Radar Cross Section(RCS), Random media, Simple formula, computation time, mean square error(MSE), scattered field, scattered intensity