针对面阵凝视器件运用到红外搜索跟踪系统中出现的图像拖尾问题, 分析了造成像移的原因。利用齐次坐标变换关系, 推导出周视搜索过程中的像面位置方程和像移速度方程, 通过对周视搜索过程中扫描像移的建模分析, 指出了补偿后的剩余像移量范围。提出一种动态扫描凝视补偿方案, 确定了凝视补偿扫描器的频率、摆角和速度准确度等参数。并对信号进行傅里叶频谱分析, 确定了补偿扫描器的伺服控制系统带宽。

For the image smearing problem when array staring detector being applied in infrared search and tracking system (IRST), the causes of image motion were analyzed. By using homogeneous coordinate transformation relations, the image plane position equation and image motion velocity equation were derived for panoramic scanning, and the mathematical model of image motion was built and analyzed for panoramic scanning. The residual image motion after compensation was pointed out and a scheme of dynamic scanning and staring compensation was proposed. The parameters such as frequency, swing angle and speed accuracy of the staring compensation scanner were determined. And the signals Fourier spectrum was analyzed, thus, the bandwidth of compensation scanner’s servo control system was determined.