NDLI: Frequency-modulated diverse array transmit beamforming with bat metaheuristic optimisation

Content Provider	IET Digital Library
Author	Nusenu, Shaddrack Yaw Basit, Abdul
Abstract	Frequency diverse array (FDA) as a new array technology with range-, angle- and time-dependent beamforming has received much attention, especially in the application of radar systems. In FDA, the element indices employed frequency increments to produce angle–range beamforming. This study proposes bat metaheuristic algorithm-based synthesis technique to uncouple the FDA angle–range beamforming. Specifically, the authors optimise the frequency increment, amplitude weighting and phase weighting with bat metaheuristic algorithm to obtain single-dot and multi-dot shape transmit beamforming. In addition, they take into account the real scenario, i.e. the propagation time of the radiated signal arriving at the target position. It is demonstrated that the proposed bat algorithm FDA achieves more focused beamforming (i.e. narrower mainlobe) and better sidelobes levels (peak to sidelobe ratio) compared to other frequency increment techniques in the literature.
Starting Page	1338
Ending Page	1342
Page Count	5
ISSN	17518784
Volume Number	14
e-ISSN	17518792
Issue Number	Issue 9, Sep (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/14/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2019.0629
Journal	IET Radar, Sonar & Navigation
Publisher Date	2020-04-16
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Amplitude Weighting Array Signal Processing Bat Algorithm FDA Array Technology Bat Metaheuristic Algorithm-based Synthesis Technique Bat Metaheuristic Optimisation FDA Angle–range Beamforming FM Radar Frequency Increment Technique Frequency-modulated Diverse Array Transmit Beamforming Optimisation Optimisation Technique Phase Weighting Radar Equipment Radar Signal Processing Radar System Radar Transmitters Signal Processing And Detection System And Application Time-dependent Beamforming
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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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