5 ms·
You can't just subtract a bright signal and hope to see the weak signal underneath it, or we'd just subtract daylight during the day.
by jdashg 7y ago
You can't just subtract a bright signal and hope to see the weak signal underneath it, or we'd just subtract daylight during the day.
- doubleunplussed 7y agoDepends how bright, I do it every day in a different context and it can work pretty well. The brighter, the more of that noise I was getting at. Sunlight is very, very bright , but satellites less so. I'd need to know how bright to know if the resulting noise would swamp the signal. Perhaps the fact that astronomers aren't doing this is evidence that it does.