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What is MRTD?

MRTD (Minimum Resolvable Temperature Difference) is the key parameter to comprehensively evaluate the ability of NETD and IFOV in the field of thermal imaging. At a given IFOV value, when observers can just distinguish 4 bands (50% of probability), the temperature difference between the target and background called MRTD. The smaller the MRTD, the better the performance of infrared thermal imagers.

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