Developments in EO Data Reception, Dissemination and Archival at NRSA
- Paper number
IAC-07-B1.4.03
- Author
Dr. K. Radhakrishnan, National Remote Sensing Agency, India
- Coauthor
ANIL KUMAR, National Remote Sensing Agency, India
- Coauthor
Mr. A.S. MANJUNATH, National Remote Sensing Agency, India
- Year
2007
- Abstract
The rapid advancement in remote sensing technology and corresponding applications, the Earth Observation Ground Segment has undergone a significant change at NRSA over the years. From dedicated data acquisition and processing systems, we have realized multimission data acquisition quicklook and browse systems and also multimission integrated information management systems. Front end of Data reception station has been upgraded to handle wider bandwidth and data rates upto 320 Mbps for near future missions like RISAT. Antenna Feed, Down Converters and RF chain has been upgraded. To cater to multimission scenario mission independent , fully configurable demodulator/bit synchs have been deployed. For handling data acquisition in multi satellite scenario where in data from 5 to 6 remote sensing satellites is to be received almost simultaneously, automation of operations have been incorporated towards station configuration to avoid manual errors. From media based data handling, there has been a shift towards netcentric data handling among the various work centres such as user order processing, data processing systems, special processing systems, data quality evaluation, and product quality control work centres. The turn around time for dissemination of user desired data products has been improved from two weeks to one day. Presently a state of the art integrated environment has been envisaged which will bring the turn around time to one hour after the requisition of the data. Automation has been incorporated at both data acquisition and data processing to improve the product throughput. Presently NRSA is catering to a demand of about 30,000 data products per annum and in the next two years it is aimed to reach a level of 50,000 products per annum by realizing the integrated multimission ground system for earth observation (IMGEOS) .This will significantly modify the entire data production and dissemination chain so that data can be made available to user within two hours from data acquisition at Shadnagar in some cases. Some of these novel developments planned in the near future will be discussed in this paper.
Authors: K. Radhakrishnan, A.S. Manjunath and Anil Kumar, National Remote Sensing Agency - Department of Space Balanagar, Hyderabad 500 037 India Phone: (+91 40) 2388 4375 - Fax: (+91 40) 2387 9307 E-mail: director@nrsa.gov.in, dddp@nrsa.gov.in , dddas@nrsa.gov.in
- Abstract document
- Manuscript document
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