用ＳＰＲＩＴＥ探测器的脉冲响应（格林函数）描述了基于时间频率和空间频率变化的ＳＰＲＩＴＥ探测器光学传递函数（ＯＴＦ）、调制传递函数ＭＴＦ和相位传递函数（ＰＴＦ），并由此分析了该探测器对红外辐射图像在时间域和空间域的联合滤波特性 The SPRITE detector optical transfer function (OTF), the modulation transfer function MTF and the phase transfer function (PTF) are described based on the impulse response (Green’s function) of the SPRITE detector and the analysis of the detection The Joint Filtering of IR Radiation Image in Time Domain and Spatial Domain