Atmospheric CO2b – D Circuit Noise
Gaussian Distribution
A phenomena having a Gaussian – or “normal” – distribution has a function of the form:… Read the rest
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atmoCO2n
Atmospheric CO2b – C Circuit Signal Attenuation
Signal Attenuation From CO2
CO2 is a ubiquitous atmospheric gas. A certain portion of the on-wavelength signal will always… Read the rest
atmoCO2n
Atmospheric CO2b – B Circuit ADC Signal
ADC Basics
Ultimately, the information will need to be quantized. In an ideal situation, a 10-bit ADC has resolution of … Read the rest
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Atmospheric CO2b – A Circuit ADC Basics
ADC
Ultimately, the information will need to be quantized. In an ideal situation, a 10-bit ADC has resolution of 1 part per… Read the rest
atmoCO2
Atmospheric CO2 – References
from Optical Depth GeometryB – May2014.docx
Abshire, J. B., Riris, H., Allan, G. R., Weaver, C. J., Mao, J., Sun, … Read the rest
atmoCO2
Atmospheric CO2 – Avalanche Photodiodes (APD)
Photodiode Operation
The photodiode detector provides the conversion from optical power to electrical current; it is… Read the rest
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Atmospheric CO2 – Photodiodes & Signal Range
A receiving photodiode operates in the same manner as any reverse-biased diode (pn-junction) except for being optimized… Read the rest
atmoCO2
Atmospheric CO2 – Basic Reflectivity & Range
This discussion is based on a relative “best-case” experiment – expected variations if everything is “ideal”.… Read the rest
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Atmospheric CO2 – Plots
All plots use parameters as listed unless noted [1]:
CO2 = 380 … Read the rest
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ORIG – Atmospheric CO2 – Attenuation Elements
Particles that are transparent to the beam are not of concern here. This leaves only attenuation elements – those elements… Read the rest