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Glossary:Probability of detection (POD)
For a specified remote detection technology, the probability of detection (POD) function represents the likelihood of successfully detecting an emitter at some source rate for a given set of conditions during a single measurement observation. Although different technologies may be affected by additional parameters, in general, detectability of a given source (at rate Q) depends on the wind field that drives plume dispersion the spatial resolution of the measurement, and the effective signal-to-noise ratio (SNR) of the measurement system. (Conrad et al 2022)
The probability that a given emission source will be detected by an LDAR method. Probability of detection is often depicted as a sigmoid curve or surface, where it is the function of emission rate and other relevant variables (e.g., wind speed).
A POD curve or surface is a key metric required to model the emission mitigation potential of solutions using tools like FEAST or LDAR-Sim. The POD describes the probability that an emission source will be detected by a solution as a function of many independent parameters including characteristics of the emission source itself (e.g. the emission rate, source type, position, etc.) and environmental conditions (e.g. wind speed and direction, precipitation, etc.).[1]