NOAA Satellite Conference (NSC) April 29, 2015 Non Export-Controlled Information User Readiness for...

NOAA Satellite Conference (NSC)April 29, 2015

Non Export-Controlled Information

User Readiness forGRB and HRIT/EMWIN

Paul Seymour and Matthew SeyboldNOAA/NESDIS/OSPO/Satellite Products and Services DivisionNCWCP College Park, MD and NSOF Suitland, MD

[email protected]@noaa.gov

http://www.goes-r.gov/

mailto:[email protected]



Non Export-Controlled Information 2

GRB L-Band Down-Link

NSOF WCDAS(and CBU)

GRB

GRB – L-Band dual CP

User



GRB X-Band to L-Band Distribution

NSOF WCDAS(and CBU)

GRB


GRB – X-Band

GR

B –

L-B

and

du

al

CP

User

GRB –

L-B

and

dual

CP



HRIT/EMWIN Flow

NSOF WCDAS(and CBU)HRIT / EMWIN

User

HRIT/EMW

IN – S-band

HRIT/E

MW

IN –

L-b

and

HRIT / EMWIN



GRB and HRIT/EMWIN in the GOES-R System


GRB


GRB – X-Band

GR

B –

L-B

and

du

al

CP

User

HRIT/EMW

IN – S-band

HRIT/E

MW

IN –

L-b

and

HRIT / EMWIN

GRB –

L-B

and

dual

CP



GRB Downlink Characteristics

• Input Center Frequency: 1686.6 MHz• Content (specified for each of two polarization channels: LHCP, RHCP)

– L1b data, QC data and metadata: ABI, SUVI, EXIS, SEISS, MAG– L2 data, QC data, metadata: GLM– GRB Information Packets

• Data rate– 31 Mbps maximum data rate– 15.5 Mbps instantaneous maximum for each polarization channel– Downlink 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 QPSK

• Modem Required C/No (dB-Hz): 78.6• Maximum 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)



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 Scan 3000 km X 5000 km (CONUS: 5 minute)1000 km X 1000 km(Mesoscale: 30 seconds)

Polarization None Dual Circular Polarized

Receiver Center Frequency

1685.7 MHz (L-Band) 1686.6 MHz (L-Band)

Data Rate 2.11 Mbps 31 Mbps

Antenna Coverage Earth Coverage to 50 Earth Coverage to 50

Data Sources Imager and Sounder ABI (16 bands), GLM, SEISS, EXIS, SUVI, MAG

Space Weather None ~2 Mbps

Lightning Data None 0.5 Mbps



Details of the GRB Dual Polarized Signal

• GRB 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).



Details of the GRB Dual Polarized Signal

• Reception of the GRB data requires a fixed dish antenna• Dual 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.



GRB Ground Antenna Sizes

NOTES:1. Calculations based on available data as of May 20112. Each antenna size is usable within the indicated contour3. 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-West GOES-East



GOES-R Rebroadcast (GRB) Simulators

• Self-contained hardware & software with pull out keyboard and screen

• Available for 90-day loan periods with potential extensions

• Includes training & tech support

• Loans commenced Nov 2013 and slated through 2019

• 10 loans completed• Requests:

– [email protected] http://www.goes-r.gov/users/grb.html

Project Manager at HITS:Ed Czopkiewicz ([email protected] )



Depot Repair

Available

Out To User

At Factory

Status of GRB Simulators

NOAA Sat Conf

Current StatusSim 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 LoansSim 1 – None at this timeSim 2 – None at this timeSim 3 – None at this timeSim 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.html



User Readiness forGRB and HRIT/EMWIN

Paul Seymour and Matt SeyboldNOAA/NESDIS/OSPO/Satellite Products and Services DivisionNCWCP College Park, MD and NSOF Suitland, MD

[email protected]@noaa.gov






HRIT/EMWIN Flow


User

HRIT/EMW

IN – S-band

HRIT/E

MW

IN –

L-b

and

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/Warnings– Forecasts, Graphic Format Products and Imagery– Low cost ground receive stations

• The NOAA NESDIS Low Rate Information Transmission (LRIT) is a collection of reduced resolution GOES and MTSAT imagery and products– GOES Visible, Infrared and Water Vapor Imagery at 4 Km Spatial Resolution– MTSAT 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



Transitioning HRIT/EMWIN from GOES NOP to GOES-R

• Improved data products for hemispheric retransmission– Faster full disk images: between 15 and 30 minutes– Warnings, Watches, Tropical Storm Information– Copy of GOES Data Collection System (GOES DCS)

• Requires new antenna and receiver hardware– Receiver frequency shift to 1694.1 MHz from:

• EMWIN 1692.7 MHz and LRIT 1691.0 – BPSK Polarization; EMWIN shift from Offset QPSK– Data Rate to a combined 400 Kilobits per Second from: EMWIN: 19.2 Kbps

and LRIT : 128 Kbps (combined 147.2)



Transition from LRIT and EMWIN to HRIT/EMWIN

LRIT / EMWIN Based on GOES NOP

HRIT/EMWINOn 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 minutes

Polarization LRIT BPSKEMWIN offset QPSK

BPSK

Receiver Center Frequency

LRIT 1691.0 MHz (L-Band)EMWIN 1692.7 MHz (L-Band)

1694.1 MHz (L-Band)

Data Rate LRIT 128 KbpsEMWIN 19.2 Kbps

400 Kbps

Antenna Coverage Earth Coverage to 50 Earth Coverage to 50

Imagery Data Sources GOES NOP Imager (IR,VIS,WV) MTSAT Imager

ABI (3 or more bands)HBI (3 bands hourly-GOES W

EMWIN Products Full Suite of Current Products Combined w/ LRIT Products

GOES DCS Copy of DCS observations Copy of observations



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 0.3– The resulting “Necessary Bandwidth” for this signal will be 1.205 MHz

• Modem 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 respectively



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 observations

• New data rate, center frequency and modulation (EMWIN Users)

• Ground receive stations are COTS utilizing a 1 – 1.2 meter antenna

• Take the time to talk to the vendors supplying LRIT Receive Stations

• Prototype demo in the hallway through Thursday afternoon

• Documents and updates to be posted on the GOES-R web site:– http://www.goes-r.gov/ -- http://www.goes-r.gov/users/hrit.html


NOAA Satellite Conference (NSC) April 29, 2015 Non Export-Controlled Information User Readiness for...

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