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Sandell归纳的用于热像仪理论上比较的参数C可从参考资料的公式(16)导出,使用这个公式,当背景温度为T_b,温差为△T时,信噪比μ可以表示成如下的形式:
The parameter C used by Sandell for theoretical comparison of thermal imagers can be derived from the reference equation (16). Using this formula, when the background temperature is T_b and the temperature difference is ΔT, the signal-to-noise ratio μ can be expressed as follows form: