FDA-MIMO Beampattern Synthesis with an Analytical Method

Since the beampattern has the characteristics of range-angle dependence, frequency diverse array multiple-input multiple-output (FDA-MIMO) radar has a good application prospect. There have been many studies to improve the performance of the beampattern by optimizing the frequency offset. However, on...

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Published in:International journal of aerospace engineering 2021, Vol.2021, p.1-11
Main Authors: Zhou, Changlin, Wang, Chunyang, Gong, Jian, Tan, Ming, Zhao, Yingjian, Liu, Mingjie
Format: Article
Language:English
Subjects:
Aerospace engineering
Approximation
Digital signal processors
Exact solutions
Mathematical analysis
Parameters
Performance enhancement
Radar arrays
Radar systems
Sidelobes
Window functions
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container_title International journal of aerospace engineering
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creator Zhou, Changlin
Wang, Chunyang
Gong, Jian
Tan, Ming
Zhao, Yingjian
Liu, Mingjie
description Since the beampattern has the characteristics of range-angle dependence, frequency diverse array multiple-input multiple-output (FDA-MIMO) radar has a good application prospect. There have been many studies to improve the performance of the beampattern by optimizing the frequency offset. However, on the basis of fully understanding the time parameters, the relationship between the array element frequency offset and the beampattern performance still needs to be clarified. Based on a new FDA-MIMO radar framework, this paper presents an analytical solution of the beampattern, which removes the influence of the time parameter. Taking the minimum main lobe as the objective function, an analytical method for solving a better frequency offset is given. Then, a method of using the window function was proposed to reduce the high side lobes of the range dimension. Comparing with the existing FDA radar beampattern design methods, it can achieve a more focusing beampattern. The simulation results verify the correctness of the theory.
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subjects Aerospace engineering
Approximation
Digital signal processors
Exact solutions
Mathematical analysis
Parameters
Performance enhancement
Radar arrays
Radar systems
Sidelobes
Window functions
title FDA-MIMO Beampattern Synthesis with an Analytical Method
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