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Title: Microwave attenuation of spherical raindrops: An efficient TCS formula using 3-D fitting
Authors: Li, L.-W. 
Leong, M.-S. 
Seow, Y.-L.
Yeo, T.-S. 
Kooi, P.-S. 
Keywords: Electromagnetic scattering
Numerical analysis
Radio wave propagation
Rainfall attenuation
Issue Date: 1998
Citation: Li, L.-W.,Leong, M.-S.,Seow, Y.-L.,Yeo, T.-S.,Kooi, P.-S. (1998). Microwave attenuation of spherical raindrops: An efficient TCS formula using 3-D fitting. Microwave and Optical Technology Letters 17 (2) : 121-125. ScholarBank@NUS Repository.
Abstract: In this work, the Mie scattering theory is implemented in the MATHEMATICA package, and a very compact program is developed. Also, exact values of the electromagnetic total scattering cross sections (TCS) for various cases have been obtained. It is found that, depending upon the frequency and raindrop sizes, the convergence of the summation may become very slow. To increase the computational speed, a three-dimensional (3-D) nonlinear least squares fitting has been carried out based on those exact results, and an asymptotic but efficient formula is obtained. It is found that the computational speed is increased more than ten times using the efficient formula generated by the 3-D fitting. © 1998 John Wiley & Sons, Inc.
Source Title: Microwave and Optical Technology Letters
ISSN: 08952477
Appears in Collections:Staff Publications

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