不同雨滴大小分布的雨场微波衰减和多普勒噪声的有效模拟

2012 12th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) Pub Date : 2012-03-05 DOI:10.1109/MICRORAD.2012.6185245

U. Siart, S. Hipp, T. Eibert, C. Chwala, H. Kunstmann

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引用次数: 0

摘要

本文提出了考虑给定体积内每一个雨滴的雨电磁散射模拟器的计算效率和精度显著提高的策略。在考虑功率消光的情况下，除考虑雨率相关噪声外，还对雨率相关信号衰减进行了建模。为了提高Mie散射计算的效率，加快了贝塞尔函数的计算速度。此外，本文还研究了在保留信号统计特性的同时减小模拟总量的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Efficient modelling of rain field microwave attenuation and doppler noise for different drop size distributions

This work presents strategies to significantly improve the numerical efficiency and the accuracy of a simulator for electromagnetic scattering by rain which considers every single rain drop within a given volume. By also considering power extinction the rain-rate dependent signal attenuation is modeled in addition to the rain-rate dependent noise. In order to improve the efficiency of Mie scattering computation the evaluation of Bessel functions has been accelerated. Furthermore this paper presents investigations for downsizing the total simulation volume while retaining the signal's statistical properties.

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2012 12th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad)

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