التفاصيل البيبلوغرافية
| العنوان: |
The effect of instrument performance upon the calculated spectrum from a spaceborne IR interferometer |
| المؤلفون: |
James, D. A, Wolfe, R. H., Jr |
| بيانات النشر: |
United States: NASA Center for Aerospace Information (CASI), 1976. |
| سنة النشر: |
1976 |
| مصطلحات موضوعية: |
Instrumentation And Photography |
| الوصف: |
The data processing equations used to transform an interferometer output signal into a spectrum have been applied to the instrument noise to find the relationship between the signal to noise ratio (S/N) in the interferogram and that in the computed spectrum. Both photon and thermal noises have been taken into account. The results show that the voltage S/N in the spectrum is inversely proportional to the square root of the number of samples so that taking a larger number of samples requires a larger S/N in the interferogram to achieve the same S/N in the spectrum. Numerical examples are given relating the exposure time to design and performance parameters for stellar and atmospheric applications. |
| نوع الوثيقة: |
Report |
| اللغة: |
English |
| URL الوصول: |
https://ntrs.nasa.gov/citations/19760063088 |
| ملاحظات: |
NAS9-14350 |
| رقم الانضمام: |
edsnas.19760063088 |
| قاعدة البيانات: |
NASA Technical Reports |