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Synchronous Control Analysis of TDI-CCD Imaging System

机译:TDI-CCD成像系统的同步控制分析

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The paper describes structure and principle of TDI-CCD image sensor. With help of the Modulated Transfer Function (MTF), the negative effect on image quality is fully analyzed, which is caused by the mismatch between TDI-CCD line scanning and velocity of image motion. After theory analysis and experiments, the results show that within the Nyquist frequency, only the synchronous error is strictly controlled in the range of ±2%, and a continuous four-phase imaging clock is employed, the effects of image motion is basically eliminated during process of imaging.
机译:本文介绍了TDI-CCD图像传感器的结构和原理。借助于调制传递函数(MTF),可以完全分析对图像质量的负面影响,这是由TDI-CCD线扫描与图像运动速度之间的不匹配引起的。经过理论分析和实验,结果表明,在奈奎斯特频率范围内,仅将同步误差严格控制在±2%的范围内,并采用连续的四相成像时钟,基本上消除了图像运动的影响。成像过程。

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