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本文研究了一种红外图像信号处理的相位跟踪与锁定迭代技术，用于准确有效地对图像进行同步采集与方位变换处理．采用本技术的方案较之常规方案具有更好的实时应变性、ＤＳＰ易实现性和低的计算精度敏感性，从而明显地提高了方位转换结果精度．本文讨论了算法的收敛性，文中还给出了ＤＳＰ实时实现方案，并提出了一种解决多中断驱动任务的紧急服务加后期服务策略，取得了好的实用结果．
In this paper, a phase tracking and locking iteration technique for infrared image signal processing is studied, which is used to accurately and effectively process the image acquisition and azimuth transformation synchronously. Compared with the conventional scheme, the scheme adopting the present technology has better real-time adaptability, the DSP is easy to implement and has lower computational precision sensitivity, thereby obviously improving the accuracy of the azimuth conversion result. In this paper, the convergence of the algorithm is discussed. The real-time implementation of DSP is also given and an emergency service plus post-service strategy to solve the multi-interrupt driven task is proposed. Good practical results are obtained.