I know GPS is a slow repeating stream (the ephemeris repeats every 30 seconds and the almanac every 12.5 minutes) but that probably came before fountain codes.
Reed-Solomon/erasure codes have been in operations since the 1960s
https://en.wikipedia.org/wiki/Reed%E2%80%93Solomon_error_cor...
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I know GPS is a slow repeating stream (the ephemeris repeats every 30 seconds and the almanac every 12.5 minutes) but that probably came before fountain codes.