User Readiness for GRB and HRITEMWIN Paul Seymour and Matthew Seybold NOAANESDISOSPOSatellite Products and Services Division NCWCP College Park MD and NSOF Suitland MD PaulSeymournoaagov MatthewSeyboldnoaagov ID: 773529
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User Readiness forGRB and HRIT/EMWIN Paul Seymour and Matthew Seybold NOAA/NESDIS/OSPO/Satellite Products and Services DivisionNCWCP College Park, MD and NSOF Suitland, MDPaul.Seymour@noaa.govMatthew.Seybold@noaa.gov http://www.goes-r.gov/
GRB L-Band Down-Link2 NSOF WCDAS (and CBU) GRB GRB – L-Band dual CP User
GRB X-Band to L-Band Distribution3 NSOF WCDAS (and CBU) GRB GRB – L-Band dual CP GRB – X-Band GRB – L-Band dual CP User GRB – L-Band dual CP
HRIT/EMWIN Flow4 NSOF WCDAS (and CBU) HRIT / EMWIN User HRIT/EMWIN – S-band HRIT/EMWIN – L-band HRIT / EMWIN
GRB and HRIT/EMWIN in the GOES-R System 5 NSOF WCDAS (and CBU) HRIT / EMWIN GRB GRB – L-Band dual CP GRB – X-Band GRB – L-Band dual CP User HRIT/EMWIN – S-band HRIT/EMWIN – L-band HRIT / EMWIN GRB – L-Band dual CP
GRB Downlink Characteristics Input Center Frequency: 1686.6 MHzContent (specified for each of two polarization channels: LHCP, RHCP) L1b data, QC data and metadata: ABI, SUVI, EXIS, SEISS, MAGL2 data, QC data, metadata: GLMGRB Information PacketsData rate31 Mbps maximum data rate15.5 Mbps instantaneous maximum for each polarization channelDownlink link margin: 2.5 db Compression - Lossless compression required JPEG2000 (ABI, SUVI) and SZIP (GLM); EXIS, SEISS and MAG data will not be compressed Format Outer Frame Format: DVB-S2 Inner Frame Format: CCSDS Space Packet Coding BCH + LDPC (2/3) for 8-PSK and LDPC (9/10) for QPSKModem Required C/No (dB-Hz): 78.6Maximum Demodulator Required Eb/No (dB) for 1x10-10 BER: 3.7 dB (8 PSK); 3.9 dB (QPSK) Minimum Antenna System G/T (dB/K) : 15.2 db/K (at 50 Elevation) 6
Transition from GVAR to GRB GOES Variable (GVAR) GOES Rebroadcast (GRB) Full Disk Image 30 Minutes 5 Minutes (Mode 4) 15 min (Mode 3) Other Modes Rapid Scan, Super Rapid Scan3000 km X 5000 km (CONUS: 5 minute) 1000 km X 1000 km(Mesoscale: 30 seconds)PolarizationNone Dual Circular PolarizedReceiver Center Frequency1685.7 MHz (L-Band)1686.6 MHz (L-Band) Data Rate2.11 Mbps31 Mbps Antenna CoverageEarth Coverage to 5 0 Earth Coverage to 50Data Sources Imager and SounderABI (16 bands), GLM, SEISS, EXIS, SUVI, MAG Space WeatherNone~2 Mbps Lightning DataNone0.5 Mbps 7
Details of the GRB Dual Polarized SignalGRB LHCP: L1b products from ABI 0.64 um band and 6 IR bands (3.9, 6.185, 7.34, 11.2, 12.3, and 13.3 um) GRB RHCP: L1b products from ABI bands 0.47, 0.865, 1.378, 1.61, 2.25, 6.95, 8.5, 9.6 and 10.35um, L2+ GLM, L1b SUVI, L1b EXIS, L1b SEISS, and L1b Magnetometer products Ensures load balanced utilization of the two circular polarizations, allowing users to receive all GRB products with a dual-polarized system (both LHCP and RHCP), and allowing users flexibility to receive GOES Imager legacy channels with a single polarized system (LHCP only).8
Details of the GRB Dual Polarized SignalReception of the GRB data requires a fixed dish antennaDual feed horns connected to 2 Low Noise Amplifiers (LNAs) The LNA outputs are connected to RF/IF down-converters RF/IF down-converters connected to DVB-S2 capable receivers The GRB downlink center frequency of 1686.600 MHz requires an antenna G/T of 15.2 dB/K for worst-case locations. This equates to a 4.5 meter dish with a system noise temperature of 120 K. Most CONUS locations are anticipated to have acceptable performance with a 3.8 meter dish.You will need a new receive system from antenna to computer. 9
GRB Ground Antenna Sizes NOTES: Calculations based on available data as of May 2011 E ach antenna size is usable within the indicated contour Rain attenuations included are: 1.3/1.6/2.0/2.2/2.5 dB (3.8 to 6 m) 4 . An operating margin of 2.5 dB is included as the dual polarization isolation is likely to vary within each antenna size area GOES-WestGOES-East 10
GOES-R Rebroadcast (GRB) Simulators Self-contained hardware & software with pull out keyboard and screenAvailable for 90-day loan periods with potential extensions Includes training & tech supportLoans commenced Nov 2013 and slated through 201910 loans completedRequests: GRBSimulator@noaa.gov http://www.goes-r.gov/users/grb.html Project Manager at HITS: Ed Czopkiewicz (eczopkie@harris.com )
Depot Repair Available Out To User At Factory Status of GRB Simulators NOAA Sat Conf Current Status Sim 1 – At CIRA/CSU in Ft. Collins, CO. Anticipated return to Depot on 6 Jun 2015. Sim 2 – At NOAA Sat Conference. Anticipated return to Depot on 1 May 2015. Sim 3 – At Harris Melbourne factory for support of NWS GRB Antenna program. Anticipated return to Depot on 20 Sep 2015. Sim 5 – At University of WI – SSEC. Anticipated return to Depot on 15 Jul 2015. Projected Loans Sim 1 – None at this time Sim 2 – None at this timeSim 3 – None at this time Sim 5 – Lockheed Martin at King of Prussia, PA in mid-August 2015 Locations Current Past HITS-Omaha UW - SSEC RT Logic Honeywell Sea Space General Dynamics Harris Industry Day EEC Telespace Global Imaging Quorum Communications CIRA/CSU Lockheed Martin Future Aug 14 Sep 14 Oct 14 Nov 14 Dec 14 Jan 15 Feb 15 Mar 15 Apr 15 May 15 Jun 15 Jul 15 GRB Sim 1 GRB Sim 2 GRB Sim 3 GRB Sim 4 GRB Sim 5
GRB Summary GRB allows real time distribution of all Level-1b GOES-R data products for direct readout users.Direct Readout users need to upgrade all equipment for GOES-R:Significant increase in data rate!!!New data format!!!GRB simulators may be scheduled now for Direct Broadcast reception equipment development and testing. GRB Simulator located in the Patuxent Room Thru Wednesday Afternoon Documents and updates to be posted on the GOES-R web site: http://www.goes-r.gov / http://www.goes-r.gov/users/grb.html13
User Readiness forGRB and HRIT/EMWIN Paul Seymour and Matt Seybold NOAA/NESDIS/OSPO/Satellite Products and Services DivisionNCWCP College Park, MD and NSOF Suitland, MDPaul.Seymour@noaa.govMatthew.Seybold@noaa.gov http://www.goes-r.gov/
HRIT/EMWIN Flow15 NSOF WCDAS (and CBU) HRIT / EMWIN User HRIT/EMWIN – S-band HRIT/EMWIN – L-band HRIT / EMWIN
Transitioning HRIT/EMWIN from GOES NOP to GOES-R NOAA NWS Emergency Managers Weather Information Network (EMWIN) is a priority-driven weather data broadcast service broadcast Alerts/Watches/WarningsForecasts, Graphic Format Products and Imagery Low cost ground receive stationsThe NOAA NESDIS Low Rate Information Transmission (LRIT) is a collection of reduced resolution GOES and MTSAT imagery and productsGOES Visible, Infrared and Water Vapor Imagery at 4 Km Spatial ResolutionMTSAT Visible, Infrared and Water Vapor Imagery on LRIT-West Tropical Storm Information Copy of GOES Data Collection Service (GOES-DCS) The GOES-R HRIT/EMWIN service combines LRIT and EMWIN with GOES-DCS on a single ~ 1 Meter Antenna 16
Transitioning HRIT/EMWIN from GOES NOP to GOES-R Improved data products for hemispheric retransmissionFaster full disk images: between 15 and 30 minutesWarnings, Watches, Tropical Storm InformationCopy of GOES Data Collection System (GOES DCS) Requires new antenna and receiver hardwareReceiver frequency shift to 1694.1 MHz from:EMWIN 1692.7 MHz and LRIT 1691.0 BPSK Polarization; EMWIN shift from Offset QPSKData Rate to a combined 400 Kilobits per Second from: EMWIN: 19.2 Kbps and LRIT : 128 Kbps (combined 147.2) 17
Transition from LRIT and EMWIN to HRIT/EMWIN LRIT / EMWIN Based on GOES NOP HRIT/EMWIN On GOES-R Series Full Disk, NH, SH images 3 Hourly Full Disk; .5 hour NH/SH; follows GOES East/West Schedule. RSO issue Variable but planned 3 Channels of Full Disk every 15 minutesPolarizationLRIT BPSK EMWIN offset QPSKBPSKReceiver Center Frequency LRIT 1691.0 MHz (L-Band)EMWIN 1692.7 MHz (L-Band)1694.1 MHz (L-Band) Data RateLRIT 128 Kbps EMWIN 19.2 Kbps400 Kbps Antenna CoverageEarth Coverage to 5 0 Earth Coverage to 5 0Imagery Data SourcesGOES NOP Imager (IR,VIS,WV) MTSAT ImagerABI (3 or more bands)HBI (3 bands hourly-GOES WEMWIN ProductsFull Suite of Current Products Combined w/ LRIT ProductsGOES DCSCopy of DCS observationsCopy of observations 18
HRIT/EMWIN Downlink Characteristics Coding – BPSK Convolutional rate ½ code with constraint length 7 concatenated with Reed Solomon (255,223) with Interleave = 4 Square Root Raised Cosine filtering using an Alpha factor of 0.3The resulting “Necessary Bandwidth” for this signal will be 1.205 MHzModem Required: predicted C/No is in the range of 63-67 dB Maximum Demodulator Required is - Eb /No is 4.6 dB for a BER of 1x10 -8 after decoding Minimum Antenna System At 5 degree elevation, the minimum antenna is 1.2 meter.At 10 degrees or more elevation the minimum size is 1.0 meter Using a LNA or LNB with a system noise temperature of about 200 K will provide a G/T of 1.0 dB/K or -0.3 dB/K respectively19
SDR Hardware Overview Downconverted , Amplified Signal Low Noise L-band downconverter was designed at DCID Digitizer Options: USRP1, USRP2 OSMO SDR Aerospace AID Blade RF Operating Systems: Windows Linux
HRIT/EMWIN Summary HRIT/EMWIN will provide at least 3 channels of GOES-NOP and / or GOES-R imagery along with warnings, watches and forecast products along with a copy of the GOES-DCS observationsNew data rate, center frequency and modulation (EMWIN Users) Ground receive stations are COTS utilizing a 1 – 1.2 meter antennaTake the time to talk to the vendors supplying LRIT Receive Stations Prototype demo in the hallway through Thursday afternoonDocuments and updates to be posted on the GOES-R web site: http://www.goes-r.gov / -- http ://www.goes-r.gov/users/hrit.html 21