The key parameter which describes the spatial resolution of imaging spectrum system is the modulation transfer function (MTF), it is an old and difficult topic to measure the MTF.

描述成像光谱仪系统空间分辩率优劣的关键参数是系统的调制传递函数—MTF, MTF的检测是一个古老而又困难的课题。

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The critical function and critical rules based on the spectrum characteristic selection and the process of spatial dimensional reduction were established.

通过光谱特征选择及空间降维处理，建立了判别函数，确定了判别规则。

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It is established on the expected value of the theoretical spatial spectrum over the joint posterior density function of the array output signal and noise parameters.

它是建立在阵列输出信号和噪声参数联合后验概率密度基础上的空间谱估计。

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