NDLI: Synthesis of conformal array antenna for hypersonic platform SAR using modified particle swarm optimisation

Content Provider	IET Digital Library
Author	Zhou, Rui Sun, Jinping Wei, Shaoming Wang, Jun
Abstract	The synthetic aperture radar (SAR) system equipped on the hypersonic platform in the near space presents many advantages compared with the conventional airborne SAR. However, due to the complex aerodynamic configuration and flight characteristics of the hypersonic platform, the radar design is facing some new challenges. Taking into account the new features of the platform, in this study the authors analyse the conformal design requirements of the array antenna, as well as the prominent contradiction between the high resolution and wide swath of SAR. After establishing the model of the conformal array antenna and the space coordinate system of the far-field radiation, a specific process of synthesising the antenna pattern is given. Furthermore, the antenna mask templates of optimising the antenna pattern are generated based on the main performance measures of the SAR system, and the modified meta particle swarm optimisation algorithm is exploited to obtain the optimal excitation phase of each array element in synthesising the ultimate antenna pattern. Finally, simulation results verify the effectiveness of the method, where the performance of the optimised antenna pattern is evaluated numerically.
Starting Page	1235
Ending Page	1242
Page Count	8
ISSN	17518784
Volume Number	11
e-ISSN	17518792
Issue Number	Issue 8, Aug (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/11/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2016.0464
Journal	IET Radar, Sonar & Navigation
Publisher Date	2017-04-26
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Airborne SAR Antenna Array Antenna Mask Templates Array Element Complex Aerodynamic Configuration Conformal Antenna Conformal Array Antenna Synthesis Conformal Design Requirements Far-field Radiation Flight Characteristic Hypersonic Platform SAR Modified Meta Particle Swarm Optimisation Algorithm Optimal Excitation Phase Optimisation Technique Particle Swarm Optimisation Radar Design Radar Equipment Space Coordinate System Synthetic Aperture Radar Synthetic Aperture Radar System System And Application Ultimate Antenna Pattern
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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