NDLI: Channel estimation, equalisation, and evaluation for high-mobility airborne hyperspectral data transmission

Content Provider	IET Digital Library
Author	Vahidi, Vahid Yazdanpanah, Ali Pour Saberinia, Ebrahim Regentova, Emma E.
Abstract	In the past few years, unmanned aerial vehicles (UAVs) have become a primary airborne platform for hyperspectral imager for studies on precision agriculture, defence, and the environment. The ‘push-broom’ type of hyperspectral sensors require moving vehicle, and transmission and analysis of hyperspectral data by means of a UAV's high-mobility channel is challenging. While high bandwidth of hyperspectral imaging justify using orthogonal frequency division multiplexing (OFDM) for data transmission, the high speed of UAVs imposes intercarrier interference (ICI) on the transmitted OFDM signal because of the Doppler shift. This study proposes a technique for channel estimation and equalisation in order to compensate the ICI. This technique uses a complete channel matrix estimation in the frequency domain in contrast to conventional methods that only use diagonal elements when recovering the data. In order to evaluate the received data using this technique, a classification framework was designed that took into consideration both spectral and spatial information. In order to verify the robustness of the proposed model, the system was analysed using a Pavia Center hyperspectral dataset, and evaluated against speeds of 50 and 500 m/s. By using this method, improvement in both data transmission and the analysis was achieved.
Starting Page	2656
Ending Page	2662
Page Count	7
ISSN	17518628
Volume Number	10
e-ISSN	17518636
Issue Number	Issue 18, Dec (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/10/18
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2016.0599
Journal	IET Communications
Publisher Date	2016-12-15
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Algebra Channel Equalisation Channel Estimation Channel Evaluation Classification Framework Communication Channel Equalisation And Identification Complete Channel Matrix Estimation Computer Vision And Image Processing Technique Data Analysis Defence Diagonal Element Doppler Shift Electromagnetic Compatibility Frequency Domain Frequency Domain Analysis Geophysical Image Processing Geophysical Technique And Equipment Geophysics Computing High-mobility Airborne Hyperspectral Data Transmission High-mobility Channel Hyperspectral Image Hyperspectral Imager Hyperspectral Sonsor ICI Instrumentation And Technique For Geophysical, Hydrospheric And Lower Atmosphere Research Intercarrier Interference Interference Mathematical Analysis Matrix Algebra Modulation And Coding Method OFDM Modulation OFDM Signal Optical, Image And Video Signal Processing Orthogonal Frequency Division Multiplexing System Pavia Center Hyperspectral Dataset Precision Agriculture Primary Airborne Platform Push-broom Type Spatial Information Spectral Information UAV Unmanned Aerial Vehicle
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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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