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文章介绍了实现超模式采样焦平面3种解决方案面临的技术难点,为避开器件问题提出了一 种新的斜模式采样方法。以任意两雏周期采样理论为基础分析了斜模式采样技术的物理原理,并通过实验 手段验证了斜模式采样技术的可行性。试验结果表明:改变探测器推扫方向的采样间距,斜模式采样技术 可以提高传输型光学遥感器图像的空间分辨率,该技术相对于超模式采样技术,工程实现上要简单。
This paper introduces the technical difficulties in implementing the three solutions of the super-mode sampling focal plane, and proposes a new oblique-mode sampling method to avoid the device problem. Based on the arbitrary two-period sampling theory, the physical principle of oblique mode sampling technique is analyzed. The feasibility of oblique sampling technique is verified by experiments. The experimental results show that changing the sampling pitch of the detector in the sweep direction and using the oblique mode sampling technique can improve the spatial resolution of the transmission type optical remote sensor image. Compared with the super-mode sampling technique, this technique is simple to implement.