“信噪比”的版本间差异
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（以“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 ...”为内容创建页面） |
无编辑摘要 |
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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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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. |
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. |
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Through-put Measurements and SNR[http://www.noao.edu/kpno/manuals/l2mspect/node12.html] |
*Through-put Measurements and SNR[http://www.noao.edu/kpno/manuals/l2mspect/node12.html] |
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*[http://www.stsci.edu/instruments/wfpc2/Wfpc2_hand/HTML/W2_61.html] |
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2013年12月18日 (三) 12:08的版本
- 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[1]