future data dissemination development for noaa / nesdis alternative dissemination methods (adm)

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Future Data Dissemination Development for NOAA / NESDIS

Alternative Dissemination Methods (ADM)

Marlin O. Perkins

Office of Satellite Data Processing and Distribution

Asia-Pacific Satellite Data Exchange & Utilization Group (APSDEU)

Honolulu, HawaiiSeptember 20 – 22, 2006

What is ADM?ADM Task Description

– Communication Trunks– ADM User Terminal

ADM Architectural ViewsDissemination of DataGround TerminalsADM Continuing Effort

Outline

Background: What is ADM?

NOAA provides environmental data to a variety of environmental users– GOES and POES data as well as hydro-met data

Primary dissemination method is currently Direct Readout– Transmitted via government weather satellite

NOAA sees a need for alternative methods of dissemination– Direct Readout has insufficient capacity– European ADM system is currently deployed

• Meteosat data transmitted over the “Hotbird” commercial communications satellite

Background: What is ADM?

Alternative to traditional NOAA dissemination methods

ADM is the dissemination of multi-mission satellite data (includes sounder and imagery) from NOAA, and (potentially) EUMETSAT and JMA satellites.

Dissemination methods:– Internet (such as FTP request)

– DOMSAT to ADM User Terminal

– Dedicated Landline

ADM is NOT Direct Readout.

Purpose of ADM Study

Create a high level design and architecture for ADM– Design Communication Trunks– Design ADM User Terminal

Design a data dissemination system for environmental data other than Direct Readout.– Cost effective architectures– Cost effective ADM user terminal




Outline

ADM Tasks and Approaches Considered

1. Communication Trunks– Research and recommend a method of transmitting data,

point to point, or point to multi-point.– Internet

» FTP services– DOMSAT (Domestic Satellite, Commercial

Communications Satellites)» Utilize ADM Common User Terminal

– Dedicated Fiber Optic Cables (Landlines)

2. ADM User Terminal– Research and Recommend a user terminal that will work

with many commercial communications satellites and distribution systems (including commercial satellites distributing the ADM broadcast).

Results Summary

Internet distribution is not the only solution for ADM– Commercial Communications Satellites also have a role in ADM

Conformance to DVB-S (Digital Video Broadcast-Satellite) provides the lowest system cost– Conformance to DVB-S needed for low cost user terminal cost

Standard data rates for DVB-S service– 16.3 to 47.2 Mbps, dependent on EIRP and Bandwidth available

ADM user terminal cost about $2,200 (includes antenna, PC and software)– Insertion of DVB-S PCI cards in desktop computers (PCMCIA

Laptop card is not available)Commercial Communications Satellite is the only solution

for remote areas– Highest Cost is lease of commercial satellite transponders.



ADM Architectural Views ADMDissemination of DataGround TerminalsADM Continuing Effort

Outline

ADM-Related Communication Trunks

NPOESS NASA

ESPC - Environmental Satellite Processing Center

EUMETSATEUMETSAT

LandlineCommercial

SatelliteCOMMVendor

ADM User Terminal

CommercialSatellite

10.5 Mbps

POES/ MetOp

3.5 Mbps - LRD

10.5 Mbps

GOES

GVAR 72 Mbps

HRPT 664 kbps/3.5 Mbps (Metop)Real Time Data

Goddard

FairbanksC&C G/S JMAJMA

10.5 Mbps

Safety NetsNPOESS G/Ss

CDA SPSWallops

SOCC

72 Mbps

GVAR GVAR

InternetInternet

GOES

POES Stored Data NCARNCAR72 Mbps Landline

Landline

ADM User

HRPT and MHRPT3.5 Mbps Stored Mission

Data, GAC & LAC

LRD reference products23 EDRs

ADM

MHRPT SitesFairbanks, AKWallops, VA

NOAA HIP Sites Anchorage, AKHonolulu, HIChanhassen, MNMonterey, CAMiami, FLBoulder, COSuitland, MD

ADM Systems View (SV–1)

ADM - Alternative Dissemination Methods Center Hub

Uplink

ESPC - Environmental Satellite Processing Center

SpaceDomain

Ground-stationDomain

NOAA Satellite SegmentGOES-R

N/O/PNPOESSNASA

POES

InternetFTP …

DirectReadout

Users

Ground-DistributionDomain

GOESI - M

Land Lines

APT/HRPT

for POES

LRD/HRDNPOESS

UserData

UserData

UserData

Processing Domain

System Interface Description (Diagram)

ADMUsers

CDA SPS - Command and Data Acquisition Sensor Processing System

UserData

NOAAADMADMUser

Commercial

Acquisition Authority Legend

NASA

Leasedby ADM

Acquired by ADM

SOCC

CommercialSatellite

ADM - Alternative DisseminationMethods Center Hub

BroadcastManagementCenter• Receives data• Selects programming• Assembles broadcast

Functional Diagram of ADM ServicesSingle 10.5 Mbps Broadcast

NetworkManagementCenter• Routes data• Formats data• Transmits data

CommercialSatellite

Landlines

72 Mbps

10.5

MbpsNPOESS

GOES

NASA

POES

Internet

FTP Requests

...(representative

data)

MajorCenters

Hobbyists,Public

Schools

10.5 Mbps is NOAA requirement for public broadcast72 Mbps available to dedicated users at their cost.Alternate Broadcasts Tailored to Geographically

Dispersed Users

Functional Division ofADM Broadcasting System

The ADM Management Center must be divided into two functions:– Broadcast Management Center (BMC)

• Determines which programs will be on the broadcast, and their order.

• Operated by NOAA NESDIS• Receives programming from multiple sources• Assembles the Broadcast and sends it to the NMC

– Network Management Center (NMC)• Routes data• Formats data• Transmits data• Contains communications hardware for transmission

– Satellite dishes, modems, amplifiers



ADM Architectural ViewsDissemination of Data

– Internet– Commercial Communications Satellite– Dedicated Fiber-Optic Cable

Ground TerminalsADM Continuing Effort

Outline

Internet Connection for ADM User

Ev1servers.net (formerly RackShack.net)– Web server company that specializes in high bandwidth servers– $89 per month (ref: 9 Oct 2003 website)– 700 GB transferred / month

Calculate ADM transfer rate required with the following assumptions:– 1 hit per second ; 200 kB per hit– Yields: 501.59 GB / month = 6,019.1 GB / yr.

Cost not an issue for Internet connection– Availability of Internet connection to ADM User is an issue– Ability of Internet connection to support 10.5 Mbps streaming data

rate is an issue.– Reliability of Internet connection is an issue.






Outline

Intelsat 802 Distribution to Pacific

4.2 GHz Downlink 11.5 GHz DownlinkEIRP powers in

dBW WWW.SATCODX.COM

Hotbird 1,2,3,4,6 Distribution to Europe

10.719 GHz to 12.731 GHz Ku-band Downlink

Aug 2003Ref: METOP

transmission over Hotbird

EIRP powers in

dBW

WWW.SATCODX.COM






Outline

Sample ADM Link Alternative to Remote Location in American Samoa

Fiber-Optic from Suitland to Hawaii / Satellite Link to American Samoa

Suitland

LosAngeles

Hawaii

American Samoa

Fiji




Outline

Enclosure

ADM User Terminal Block Diagram

ReceiverAntenna

Power Supply Units

Antenna Pointing

PC workstations for data management and

exploitation

Software

ADM User Ground Station Subsystems

Antenna - $300 (1 meter diameter dish)– Antenna cost increases with size

Antenna Pointing (included in antenna price)– Non-tracking GEO Antenna for ADM User Terminal will be less

expensive than Tracking LEO Antenna Receiver

– LNB - $350– DVB-S (Digital Video Broadcast-Satellite) PCI (Personal Computer

Interface) Card - $70– Receive Only (no transmit) will save amplifier cost

Power supply units (provided by user)– Portable, voltage controlled supply for computer and receiver

PC workstations for data management and exploitation - ~$1000 Software - ~$500 (vendor provided)

– Nominal Software Cost, does not include image processing software

Total: $1,720 – 2,220

ADM User Terminal Reception from GEO DOMSATProdelin Brand, Non-Tracking Receiving Antenna

1.2 meter diameter antenna ~ $500

2.4 meter diameter antenna ~ $300

Cost includes:– Includes antenna and mount– Excludes LNB (see next page)

Ku-bandC-band

http://www.tripointglobal.com/Prodelin/default.htm < Sep 2003

Antenna diameters are the minimum to provide isolation from signals from adjacent satellites

LNB (Low Noise Block Downconverter)

Affixed to offset-fed antennaMany functions combined in

one unitCost: ~ $350

Feed horn Input (12 GHz)

BNC IF Output (1 GHz)DC Power Line

Low Noise AmpDownconverterLocal Oscillator

IsolatorsFilters

Buffer Amp

http://www.satcure.co.uk/tech/lnb.htm < 15 Sep 03

DVB-S PCI Cards

ITU (International Telecommunications Union) Standard

Cost ~ $70 USD 16.3 to 47.2 Mbps

– Dependent on EIRP and Bandwidth available

Vendors:– Technotrend DVBsat PCI card

• http://www.technotrend.de/english/print_files/p_pcproducts.html

– Hauppauge WinTV DVB-s card • http://www.hauppauge.de/

prod_nexus_s.htm These standard boards are deployed

in many satellite TV networks:– Dish Network set-top box, …– High volume production makes for

low cost http://www2.arnes.si/~mthale1/dvb_english.html < 15 Sep 03http://www.complextoreal.com/tdvbs.htm

http://www.technotrend.de/english/print_files/p_pcproducts.html

http://www.technotrend.de/bilder/tt-dvbsat-pci.jpg < 15 Sep 03




Outline

Alternative Dissemination Methods (ADM)Progress Report

Current Activities:– Coordinate the NOAA ADM activities and support GEO-Netcast

development NOAA ADM Activities

– Developing a mobile demonstration of ADM Center• Demo status: Practice demos complete; S/W for ADM Control Center

complete; Scripts for demo and PowerPoint charts completed• Demo scheduled for September 2006

– Prototype Development• The Broadcast Management Center (BMC) consists of the ADM

Control Room Software necessary to produce the ADM Broadcast Data Stream

• The Network Management Center (NMC) consists of hardware (with its attendant controller software) to modulate the message bits into communications symbols suitable for transmission over satellite, internet, or dedicated landline

– Application of ADM to GEO-Netcast• Architectural-level concepts have been created to show how all

components of ADM support GEO-Netcast• Coordination with GEO-Netcast continues

Alternative Dissemination Methods (ADM)ADM Prototype

Status of ADM Prototype– ADM Broadcast Management Center– Updated the User Interface Control Panel

• Updated the Priority, Queue, and Channel controls so the administrative user can control each product

• Created an interface to allow the ADM administrator to start and stop the transmission of the scheduled items

• Created an interface to display the schedule based on the administrator selected Queue

– ADM Network Management Center• IP Encapsulator and Modem systems were received in July,

and set-up and integration continues

Mobile DemoBMC

IP EncapsulatorIP Data Stream

ModulatorDVB-S Stream

NMC

Alternative Dissemination Methods (ADM)Application of ADM to GEO-Netcast

Proposed Plan:– Demonstrate ADM benefits to the NOAA mission and IGDDS– Explain how ADM can serve as the basis for the NOAA GEO-

Netcast system– Prove ADM is a subset of GEO-Netcast, and in no way exceeds

the requirements of GEO-Netcast

Status of “Application of ADM to GEO-Netcast”– GEO-Netcast architecture and programmatic history have been

reviewed.– Briefed the NOAA GEO-Netcast program manager on ADM– Actions related to GEO-Netcast:

• Demonstrate that the scope of NOAA ADM fits within GEO-Netcast

Alternative Dissemination Methods (ADM)Application of ADM to GEO-Netcast (continued)

Broadcast Format overview– Briefing on ASTC (Advanced Television Systems Committee)

video standard to NESDIS was completed– Briefing on EUMETSAT ADM (EUMETCast) to NESDIS

completedFuture ADM considerations

– Continue to brief the status of the NOAA ADM project– Propose a method by which the NOAA ADM can be interfaced

with the EUMETSAT ADM– Continue to support GEONETcast– Receive EUMETcast C-band broadcast in Chantilly VA, process it

using the ADM Prototype, and redistribute it to NESDIS Suitland via Internet.

CONCLUSION

Future ADM considerations– It has been decided that GEO-NETCast will be phase one of

ADM.– Future planning and funding for GEO-NETCast will be subject to a

successful demonstration in FY 07.

Status of “EUMETCast to NOAA ADM” transition plan for users in South America – NOAA continues to evaluate the use of ADM to support

environmental data users in Central and South America.– NOAA has not reached a definitive solution.

future data dissemination development for noaa / nesdis alternative dissemination methods (adm)

Documents

adm broadcast

environmental data

data dissemination system

purpose of adm studycreate

deployedmeteosat data

poes data

method of transmitting

commercial satellites