NDLI: HF hybrid sky-SWR system based on MIMO technology

Content Provider	IET Digital Library
Author	Liu, Tongxin Hu, Yaogai Yang, Guobin Zhao, Zhengyu Zhang, Lan Wu, Xiongbin Jiang, Chunhua
Abstract	High-frequency (HF) hybrid sky-surface-wave radar (SWR) is very useful for sea-state extraction, and the rich content echo information is very meaningful. On the basis of the multiple-input–multiple-output technology, a new HF hybrid sky-SWR system is designed. The radar transmits multi-frequency signals and synchronously receives the echoes through multiple channels. By adding linear phase shift between frames of the frequency-modulated interrupted continuous wave, the multi-frequency echo signals can be separated in the Doppler spectrum after two fast Fourier transforms. It expanded the HF hybrid sky-SWR from the single-frequency mode to a simultaneous multi-frequency one. Through this system, the ocean dynamics parameters at different frequencies can be simultaneously obtained. Moreover, multi-angle information can be obtained to use for the inversion of the sea surface current and its temporal and spatial variations. Since the transmitter site and the receiver site of the radar are placed in different areas but synchronously work with multiple channels, it is very universal and convenient for network configuration and extension. As validated by the ocean exploration experiment, this system is feasible and reliable.
Starting Page	626
Ending Page	631
Page Count	6
ISSN	17518784
Volume Number	12
e-ISSN	17518792
Issue Number	Issue 6, Jun (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/12/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2017.0427
Journal	IET Radar, Sonar & Navigation
Publisher Date	2018-03-05
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Content Echo Information Doppler Radar Doppler Spectrum Fast Fourier Transform FM Radar Frequency-modulated Interrupted Continuous Wave HF Hybrid Sky-SWR System High-frequency Hybrid Sky-surface-wave Radar System Integral Transforms Linear Phase Shift Marine Radar MIMO Radar MIMO Technology Modulation And Coding Method Multifrequency Echo Signal Separation Multifrequency Signal Transmission Multiple Channel Multiple-input–multiple-output Technology Ocean Dynamics Parameter Ocean Exploration Experiment Radar Equipment Radar Receiver Radar Signal Processing Radar Transmitter Radar Transmitters Sea-state Extraction Signal Processing And Detection Single-frequency Mode Source Separation System And Application
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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