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为满足扫描成像系统对图象配准精度,从理论上分析了在等时间采样方式下,遥感仪器对扫描系统速度稳定度的要求.探讨了等角度这一新型采样方式应用于未来遥感仪器的可行性.并将这两种采样方式成功应用于自行研制的短波红外成像仪.扫描图象表明等角度采样可以避免等时采样所产生的图象畸变.
In order to meet the requirements of the imaging system for image registration accuracy, this paper theoretically analyzed the requirements of the remote sensing instrument for the speed stability of the scanning system under the equal-time sampling method, and discussed the application of the new isometric sampling method to future remote sensing instruments Feasibility and the successful application of these two sampling methods to the self-developed shortwave infrared imager.The scanning images show that the equal-angle sampling can avoid the image distortion caused by isochronous sampling.