Continuous wavelet-like filter for a spherical surface and its application to localized admittance function on Mars

Motoyuki Kido, David A. Yuen, Alain P. Vincent

研究成果: Article査読

9 被引用数 (Scopus)

抄録

We have developed a 2D isotropic continuous wavelet-like transform for a spherical surface. The transform is simply defined as the surface convolution between the original field and a kernel, based on the zeroth-order Bessel function with a spherical correction. This spherical correction violates the geometric similarity for the various scales of the kernels, which becomes more apparent at longer wavelengths. We found numerically that this transform is practically equivalent to a Gaussian bandpass filter in the spherical harmonic domain. We have applied this wavelet-like transform on the recently acquired Martian gravity and topography fields. Using a ratio constructed locally from these two fields, we have constructed a map describing the lateral variations of the localized admittance function on Mars.

本文言語English
ページ(範囲)1-16
ページ数16
ジャーナルPhysics of the Earth and Planetary Interiors
135
1
DOI
出版ステータスPublished - 2003 1 15
外部発表はい

ASJC Scopus subject areas

  • 天文学と天体物理学
  • 地球物理学
  • 物理学および天文学(その他)
  • 宇宙惑星科学

フィンガープリント

「Continuous wavelet-like filter for a spherical surface and its application to localized admittance function on Mars」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル