玫瑰线红外图像同步采集转换及DSP实时实现

Synchronical Acquisition and Azimuth Transformation of Infrared Rosette Scanning Images and Their DSP Rela-time Implementation

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．

A phase tracking and locking technique for infrared image signal processing is. presented in this pa- per, which is used for image synchronization, acquisition and azimuth transformation with high accuracy and effi- ciency. Comparing with traditional techniques, the new one is good in change adaptation, convenient in DSP implementation, and insensitive in computational precision. The algorithm achieves much better accuracy inazimuth transformation. And its fast convergence is proved in the paper. In its DSP implementation, an emergen-cy-service plus post-service scheme which gives the experimental results, is proposed to deal with the multi-interrupt task situation