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Design of CMOS Sensor Fill Factor for Optimal MTF and SNR

机译:最佳MTF和SNR的CMOS传感器填充因子设计

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With the self-developing CMOS sensors in the instrument Focal Plane Assembly, there is flexibility in the trade-off for optimal specifications of CMOS sensor. Among the specifications, fill factor is a key item. It affects not only the window effect in FPA MTF (static), but also the smearing effect in dynamic MTF. Different rectangular shape of the pixel active area was studied for estimating the cross-track and along-track MTF. For TDI sensor, higher fill factor leads to less stage number or higher SNR, but less system MTF value; while less TDI stage number will improve the system MTF due to satellite pointing stability. This work is to present the analysis results about fill factor and stage number of TDI CMOS sensor.
机译:借助仪器焦平面组件中的自行开发的CMOS传感器,可以在权衡取舍方面灵活地选择CMOS传感器的最佳规格。在规格中,填充系数是关键项。它不仅影响FPA MTF(静态)中的窗口效果,还影响动态MTF中的拖尾效果。研究了像素活动区域的不同矩形形状,以估计交叉轨迹和沿轨迹的MTF。对于TDI传感器,较高的填充因子会导致较少的级数或较高的SNR,但会导致较小的系统MTF值。由于卫星指向稳定性,较少的TDI台数将改善系统的MTF。这项工作是要介绍有关TDI CMOS传感器的填充因子和级数的分析结果。

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