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Options for Data Distribution in the GOES-R Series GOES User Conference SESSION 5 Peter Woolner / Mitretek.

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Presentation on theme: "Options for Data Distribution in the GOES-R Series GOES User Conference SESSION 5 Peter Woolner / Mitretek."— Presentation transcript:

1 Options for Data Distribution in the GOES-R Series GOES User Conference SESSION 5 Peter Woolner / Mitretek

2 “Data” Types GOES Re-Broadcast (GRB) SEM & SXI Instrument of Opportunity (IOO) –e.g., SEI, Volcam, etc.

3 “Data” Types (CONTINUED) Low Rate Information Transmission (LRIT) Emergency Managers Weather Information Network (EMWIN) Data Collection System (DCS) –DCPR and DCPI Search and Rescue Satellite Aided Tracking (SARSAT)

4 GOES Re-Broadcast (GRB) –Currently the “GVAR” data stream from the Imager and Sounder Level-1B Data... Calibrated and Earth-located IR, and Normalized and Earth-Located Visible –GRB will be generated from the ABI & ABS (or GIFTS) as Level-1B Data Set May be various ‘flavors’ of GRB (high-rate and low-rate) GRB may NOT contain ALL ABI/ABS Data

5 GRB Option #1 High rate GRB17.6 Mbps –ABI (all data) 7.0 Mbps –ABS Radiance (all data)10.0 Mbps –ABS Products 0.6 Mbps Low rate GRB ABI & ABS 4.0 Mbps

6 GRB Option #2 High rate GRB ABI & ABS 10.6 Mbps –ABI (all data) 7.0 Mbps –ABS Radiance 3.0 Mbps –Principal Data Components (x4 reduction factor) –ABS Products 0.6 Mbps Low rate GRB ABI & ABS 4.0 Mbps

7 GRB Option #3 High rate GRB ABI & GIFTS72.6 Mbps –ABI (all data) 7.0 Mbps –GIFTS Radiance (all data)65.0 Mbps –GIFTS Products 0.6 Mbps Low rate GRB 4.0 Mbps

8 GRB Option #4 High rate GRB ABI & GIFTS23.6 Mbps –ABI (all data) 7.0 Mbps –GIFTS Radiance 16.0 Mbps –Principal Data Components (x4 reduction factor) –GIFTS Products 0.6 Mbps Low rate GRB ABI & GIFTS 4.0 Mbps

9 GRB Option #5 High rate GRB ABI & GIFTS 14.6 Mbps –ABI (all data) 7.0 Mbps –GIFTS Radiance 7.0 Mbps –Principal Data Components (x10 reduction factor) –GIFTS Products 0.6 Mbps Low rate GRB ABI & GIFTS 4.0 Mbps

10 GRB Communication Links Options 1 and 2 –All Downlinks L-Band (1672-1698) –Option 2 Only Needs 1672 to 1695 MHz Options 3, 4, and 5 –High Rate GRB X-Band (7450-7550) –All Other DownlinksL-Band Put High and/or Low Rate GRB on Commercial Satellite Link (C-Band) Modulation Types and Bandwidth’s Vary with Option

11 GRB Communication Links (CONTINUED) Downlink Freq. Band:As identified in the options Polarization:Linear N-S Coverage:Earth hemisphere –to a minimum elevation of 5 degrees User Data Rate:As identified in the options RF Data Rate:Contractor specified (at PDR) Data Format:NRZ-S Modulation:Contractor specified (at PDR) FEC Coding:Contractor specified (at PDR) Bandwidth:Contractor specified (at PDR) Required BER:1 in 10 6 Downlink EIRP:Contractor specified (at PDR) Ground G/T:15.2 dB/K at L-band TBD at X-band

12 “GVAR” to GRB Transition GVAR continues as long as a GOES-I/Q spacecraft is operational GRB becomes active with GOES-R Creation of Pseudo-GVAR is being considered to aid transitions during the period when there is one GOES-I/Q spacecraft and one GOES-R spacecraft operational

13 Multi-use Data Link (MDL) SEM, SXI, and Instruments of Opportunity Spacecraft performance data –e.g., star trackers, dynamic interaction tools, etc. Copy of PCM Health & Safety Telemetry Intend to Include with Sensor Data

14 MDL Transition No Transition Period Planned Operational with GOES-R Becomes Part of Sensor Data

15 LRIT Communications Link Downlink Frequency: 1693.4 MHz –(3 MHz higher for Option 1 and possibly 3, 4, 5) Polarization:Linear N-S Coverage:Earth hemisphere –to a minimum elevation of 5 degrees User Data Rate:256 kbps Data Format:NRZ-M Modulation:QPSK FEC Coding:Convolutional –Rate ½, Constraint length K=7 and R-S (223, 255) Bandwidth:600 kHz Required BER:1 in 10 8 Downlink EIRP:57 dBmi Ground G/T:-0.3 dB/K

16 LRIT Transition No Transition Period Planned Frequency Change Modulation Change (QPSK vs BPSK) Data Rate Growth –Product Suite Expansion

17 EMWIN Communications Link Downlink Frequency:1692.7 MHz –(3 MHz higher for Option 1 and possibly 3, 4, 5) Polarization:Linear N-S Coverage:Earth hemisphere –to a minimum elevation of 5 degrees User Data Rate:56 kbps RF Data Rate:128.2 kbps Data Format:NRZ-L Modulation:BPSK FEC Coding:Convolutional –Rate ½, Constraint length K=7 and R-S (223, 255) Bandwidth:256.4 kHz Required BER:1 in 10 6 Downlink EIRP:54 dBmi to 53 dBmi –maximum variation due to all causes Ground G/T:-0.3 dB/K

18 EMWIN Transition No Transition Period Planned Frequency Change (Except Option 2) NO Modulation or Coding Change Data Rate Growth –9.6 Kbps to 56 Kbps –Product Suite Expansion

19 DCPR Communications Link Downlink Frequency:1694.3 - 1694.7 MHz »or 1694.6 to 1695.0 MHz \ »or 3 MHz higher for Option 1 and possibly 3, 4, 5 Polarization:Uplink: RHC, Downlink: Linear N-S Channels:Up to 200 channels 1.5 kHz wide, and 33 channels 3 kHz wide –(2 adjacent 1.5 kHz channels will be allocated for 1200 bps) Coverage:Earth hemisphere –to a minimum elevation of 5 degrees User Data Rate:100, 300, and 1200 bps Data Format:NRZ-L Modulation:Bi-phase (±60 O ), and 8PSK with Trellis Codulated FEC Bandwidth:500 kHz Required BER:1 in 10 6 Downlink EIRP:52 dBmi Uplink EIRP:(TBD) Ground G/T:15 dB/K

20 DCPI Communications Link Uplink Frequencies:2034.9125 (West), 2034.900 (East), or 2034.8875 (spare) MHz Downlink Frequencies:468.8375 (West), 468.8250 (East), or 468.8125 (spare) MHz Polarization:Uplink: Linear N-S, Downlink: RHC Channels:One at a time Coverage:Earth hemisphere –to a minimum elevation of 5 degrees User Data Rate:100 bps Data Format:NRZ-L Modulation:Bi-phase (±60 O ) Bandwidth:Excess bandwidth factor of 1.00 Required BER:1 in 10 6 Downlink EIRP:45 dBmi Uplink EIRP:(TBD) Ground G/T:-29 dB/K

21 DCPR/DCPI Transition No Changes affecting DCPs Retains 300 bps and 1200 bps DCPs Possible L-Band Frequency Change to the DRGS Considering allowing CDMA –Operates transparent to current users –Perhaps as many as 100 new “Channels” in the ‘noise’

22 SARSAT Communications Link Uplink Frequencies:406.01 – 406.09 MHz 1645.65 MHz (acknowledge channel) Downlink Frequencies:1544.5 MHz +/-0.1 MHz 1544.1 MHz (acknowledge to beacon) Polarization:Uplink & Downlink: RHC Channels:One at a time Coverage:Earth hemisphere –to a minimum elevation of 5 degrees User Data Rate:400 bps Data Format:NRZ-L Modulation:Bi-phase (±60 O ) Bandwidth:Excess bandwidth factor of 1.00 Required BER:1 in 10 5 Downlink EIRP:45 dBmi Uplink EIRP:5-watts Ground G/T:6 dB/K

23 SARSAT Transition NONE New capability for acknowledgment to the beacon


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