“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)
 
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The signal-to-noise ratio of an observation is:
*The signal-to-noise ratio of an observation is:
s/n = Ct/[sqrt(sigma^2*n+t*(C-A*S))]
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.
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[http://www.noao.edu/kpno/manuals/l2mspect/node12.html]
*Through-put Measurements and SNR[http://www.noao.edu/kpno/manuals/l2mspect/node12.html]

*[http://www.stsci.edu/instruments/wfpc2/Wfpc2_hand/HTML/W2_61.html]

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]