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by infinitedata 975 days ago
I wonder which checksum algorithm they use at those ultra low latencies. Amazing work
1 comments
dredmorbius 975 days ago
There are some papers discussing this, e.g.:

"Polar Coding for Forward Error Correction in Space Communications with LDPC Comparisons", Naveed Namipour, Haleh Safavi, & Harry Shaw.

<https://ntrs.nasa.gov/api/citations/20190032244/downloads/20...>

Also "Design of Low-Density Parity-Check (LDPC) Codes for Deep-Space Applications" <https://ipnpr.jpl.nasa.gov/progress_report/42-159/159K.pdf>

The first specifically discusses early missions.

link