“信噪比”的版本间差异
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无编辑摘要 |
无编辑摘要 |
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*参见[http://www.ucolick.org/~bolte/AY257/s_n.pdf] |
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*The signal-to-noise ratio of an observation is: |
*The signal-to-noise ratio of an observation is: |
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s/n = Ct/[sqrt(sigma^2*n+t*(C-A*S))] |
s/n = Ct/[sqrt(sigma^2*n+t*(C-A*S))] |
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2016年2月18日 (四) 08:21的最新版本
- 参见[1]
- The signal-to-noise ratio of an observation is:
s/n = Ct/[sqrt(sigma^2*n+t*(C-A*S))]
where C is the count rate from the object (photons per second), t the exposure time, sigma the read-out noise of each pixel, n the number of pixels on which the image falls, S the number of photons from the sky per unit solid angle, and A the solid angle subtended by the image.
- Through-put Measurements and SNR[2]