OLSG Report_Final_06_05_12 - Interagency Operations Advisory ...
OLSG Report_Final_06_05_12 - Interagency Operations Advisory ...
OLSG Report_Final_06_05_12 - Interagency Operations Advisory ...
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Functional<br />
breakdown<br />
Cross support interface<br />
parameters 4<br />
7. Link protocol + control<br />
a. Sync pattern<br />
b. Data (frame) structure<br />
(CCSDS packet TM,<br />
etc.)<br />
c. DTN<br />
d. …p b …<br />
Optical Link Study Group (<strong>OLSG</strong>) <strong>Final</strong> <strong>Report</strong><br />
IOAG.T.<strong>OLSG</strong>.20<strong>12</strong>.V1<br />
Implementation parameters<br />
J. Detector / Focal Plane<br />
i. Technology<br />
ii. Sensitivity<br />
iii. Noise performance<br />
iv. Response time<br />
K. Receiver Back-end<br />
i. Decoder<br />
ii. De-interleaver<br />
iii. …p b …<br />
Data uplink<br />
8. Uplink beam:<br />
a. Wavelength + linewidth<br />
b. Polarization + purity<br />
c. RSSI range + stability<br />
d. Modulation (OOK,<br />
BPSK, PPM … &<br />
characteristics (frame &<br />
slot widths, dead time,..)<br />
9. Data coding<br />
a. SCCC, LDPC, Turbo,<br />
b. Error correction<br />
c. …p b …<br />
10. Link protocol + control<br />
a. Sync pattern<br />
b. Data (frame) structure<br />
(CCSDS packet TM,<br />
etc.)<br />
c. DTN<br />
d. …p b …<br />
L. Transmit Telescope<br />
i. Aperture & (spectral-)<br />
throughput<br />
ii. Angular beam width<br />
iii. Pointing control,<br />
accuracy & stability<br />
M. Uplink Laser<br />
i. Technology<br />
ii. Power<br />
iii. Spectral & spatial beam<br />
characteristics<br />
iv. Modulation & control<br />
N. Optical Bench<br />
i. Polarization control, if<br />
needed<br />
ii. Beam corrector, if<br />
needed<br />
O. Transmitter Back-end<br />
i. Encoder<br />
ii. Interleaver<br />
iii. Randomizer<br />
iv. …p b …<br />
For completeness, Table 32 lists additional parameters, which while not part of the space<br />
link, itself, nevertheless are important to determine cross-support compatibility and also<br />
relate to station design.<br />
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