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Xstream: a Highly Efficient High Speed Real-time Satellite Data Acquisition and Processing System Using Heterogeneous Computing : Volume Xl-8, Issue 1 (28/11/2014)

By Pramod Kumar, K.

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Book Id: WPLBN0004016126
Format Type: PDF Article :
File Size: Pages 6
Reproduction Date: 2015

Title: Xstream: a Highly Efficient High Speed Real-time Satellite Data Acquisition and Processing System Using Heterogeneous Computing : Volume Xl-8, Issue 1 (28/11/2014)  
Author: Pramod Kumar, K.
Volume: Vol. XL-8, Issue 1
Language: English
Subject: Science, Isprs, International
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus Publications
Historic
Publication Date:
2014
Publisher: Copernicus Publications, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Devi, R. U., Solanki, S. S., Rreddy, V. R., Tirupathi, T., Anuradha, R., Anshu, C.,...Akilan, A. (2014). Xstream: a Highly Efficient High Speed Real-time Satellite Data Acquisition and Processing System Using Heterogeneous Computing : Volume Xl-8, Issue 1 (28/11/2014). Retrieved from http://www.ebooklibrary.org/


Description
Description: Advanced Data Processing Research Institute (ADRIN), Department Of Space, Govt. of India,203-Akbar Road, Manovikas Nagar Secunderabad 500009, India. In the last decade, the remote sensing community has observed a significant growth in number of satellites, sensors and their resolutions, thereby increasing the volume of data to be processed each day. Satellite data processing is a complex and time consuming activity. It consists of various tasks, such as decode, decrypt, decompress, radiometric normalization, stagger corrections, ephemeris data processing for geometric corrections etc., and finally writing of the product in the form of an image file. Each task in the processing chain is sequential in nature and has different computing needs. Conventionally the processes are cascaded in a well organized workflow to produce the data products, which are executed on general purpose high-end servers / workstations in an offline mode. Hence, these systems are considered to be ineffective for real-time applications that require quick response and just-intime decision making such as disaster management, home land security and so on.

This paper discusses anovel approach to processthe data online (as the data is being acquired) using a heterogeneous computing platform namely XSTREAM which has COTS hardware of CPUs, GPUs and FPGA. This paper focuses on the process architecture, re-engineering aspects and mapping of tasks to the right computing devicewithin the XSTREAM system, which makes it an ideal cost-effective platform for acquiring, processing satellite payload data in real-time and displaying the products in original resolution for quick response. The system has been tested for IRS CARTOSAT and RESOURCESAT series of satellites which have maximum data downlink speed of 210 Mbps.


Summary
XSTREAM: A Highly Efficient High Speed Real-time Satellite Data Acquisition and Processing System using Heterogeneous Computing


 

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