Accurate quantification of the signal-to-noise ratio (SNR) a given observational phenomenon is central to associated calculations sensitivity, yield, completeness and occurrence rate. Within field exoplanets, SNR transit has been widely assumed be formula that one would obtain by assuming boxcar light curve, yielding an form $(\delta/\sigma_0) \sqrt{D}$. In this work, general framework outlined...

In this paper, we investigate the effects of auto-tracking subsystem together with different beam divergences on SNR, BER and stability of FSO communication links. For this purpose we compute the values of power, SNR and BER on receiver, based on analytic formula of Gaussian beam on receiver plane. In this computation the atmospheric effects including absorption, scattering and turbulence are c...