Theoretical and Experimental Study on Echo Fluctuation Suppression of a Cirrus Cloud by Millimeter Wave MIMO Radar-Reference-Cited by-同舟云学术

Theoretical and Experimental Study on Echo Fluctuation Suppression of a Cirrus Cloud by Millimeter Wave MIMO Radar

Published:2019-01-13 Issue: Volume:2019 Page:1-12
ISSN:1687-5869
Container-title:International Journal of Antennas and Propagation
language:en
Short-container-title:International Journal of Antennas and Propagation

Author:

Wang Jinhu¹²³⁴^ORCID,Ge Junxiang²,Wei Ming¹,Chen Hongbin⁴^ORCID,Yang Zexin²,Ren Yushu¹,Zhang Qilin¹^ORCID,Chen Hao¹

Affiliation:

1. Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing 210044, China

2. Jiangsu Key Laboratory of Meteorological Observation and Information Processing, Nanjing University of Information Science and Technology, Nanjing 210044, China

3. National Demonstration Center for Experimental Atmospheric Science and Environmental Meteorology Education, Nanjing University of Information Science and Technology, Nanjing 210044, China

4. Key Laboratory of Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China

Abstract

The scattering properties of nonspherical particles can be approximately computed by equivalent spherical theory. The scattering properties of ice particles were approximately computed by Rayleigh approximation because the sizes of the ice particles are smaller than the wavelength of millimeter wave radar. Based on the above assumption, the echo fluctuation of moving particles was analyzed by computing the total backscattering field of a cirrus cloud using the classical vector potential technique. The simulation results showed that echo fluctuation influences the accuracy of retrieving the physical parameters of a cloud. To suppress the echo fluctuation of moving ice particles, a video integrator of a millimeter wave cloud radar would be used. However, video integrators lose the rapidly changing information of ice particles and reduce radar range resolution; thus, we propose the pace-diversity technique of MIMO radar to reduce the echo fluctuation, which could be validated by theoretical computation and experimental measurements.

Funder

Program for Postgraduates Research and Innovation in Universities of Jiangsu Province

Publisher

Hindawi Limited

Subject

Electrical and Electronic Engineering

Link

http://downloads.hindawi.com/journals/ijap/2019/5937973.pdf

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