The Signal calculation involves some constants:
$$
s_{constants} = \frac{\pi}{4}\cdot
\frac{1}{hc}
$$
Where:
- $s_{constants}$ [J-1 m-1]: The factor of the signal calculation (used for the Signal-to-Noise calculation) that involves constants.
- $h$ [J s]: Planck’s constant, 6.62607015 × 10^(-34) J s.
- $c$ [m/s]: Speed of light, 299 792 458 m/s.