Attenuation behavior of solid dense random media at microwave frequencies

• Main Authors: Nadimi, S. A., Bredow, J. W., Fung, A. K.
• Format: Other/Unknown Material
• Language: unknown
• Published: 1992
• Subjects: 43; Sea ice
• Online Access: http://ntrs.nasa.gov/search.jsp?R=19930063878

To better understand scattering from nontenuous dense random media such as sea ice and snow, attenuation measurements have been performed on two different types of random media with ka values ranging from 0.5 to 0.7, and 1.5 to 2.1. Experimental results are presented for wave propagation in plane slabs of finite thickness composed of a random distribution of identical, finite scatterers, and a random distribution of scatterers with narrow size distribution. The observed behavior is described in terms of attenuation versus volume fraction, and the behavior of attenuation versus frequency. Results presented are compared to the behavior reported by some earlier experiments where the medium properties are different.