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5 votes

Stealth In Space Calculator

1. SNR to exposure time Although your mileage may vary depending on the details of your detector, you can take an approach similar to deriving what is known as the CCD equation. It's derived for the ...
HDE 226868's user avatar
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5 votes

Stealth In Space Calculator

What you need to compute is how many photons hit the entrance pupil of the camera in the allowable exposure time. This is one place where the field of view of the camera comes into play. The entire ...
AlexP's user avatar
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2 votes

Stealth In Space Calculator

This is a Frame Challenge A quick note: a question I asked on Astronomy, which wasn't well received, does make a few good points that are brought up here. You're detecting light in the infrared ...
JBH's user avatar
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2 votes

Stealth In Space Calculator

NETD vs Pixels I think I worked it out. Thermal sensors basically work like cameras; so, to figure out how much I can see in 360 degrees, I first need to figure out how many pixels it would take to ...
Nosajimiki's user avatar

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