OpenMP并行计算在侧向散射激光雷达数据处理中的应用  

Application of Parallel Computing with OpenMP in Data Processing for Side Scattering Lidar

作　　者：刘俊见 陶宗明[2] LIU Junjian;TAO Zongming(Postgraduate Company,Army Officer Academy,Hefei 230031;Department of Basic Sciences,Army Officer Academy,Hefei 230031)

机构地区：[1]陆军军官学院研究生管理大队,合肥230031 [2]陆军军官学院基础部,合肥230031

出　　处：《计算机与数字工程》2019年第2期266-271,共6页Computer & Digital Engineering

基　　金：国家自然科学基金项目(编号:41475025)资助

摘　　要：基于CCD的侧向散射激光雷达是一种正在研究中的新技术,其需要对多幅图片进行处理,传统的数据处理方法消耗时间较长。如何提高计算效率是当前数据处理中的一个难题。对侧向散射激光雷达数据处理中的计算任务进行分析,总结出需要采用并行计算提高效率的关键任务。基于OpenMP标准,设计了两种并行算法,并通过个例对其有效性进行验证。结果表明,两种并行算法合理可行,结合后在不同性能的设备上均能显著提高侧向散射激光雷达数据处理的效率。CCD-based side scattering lidar is a new technology under study. It needs to process a lot of pictures,and the tradi-tional data processing method takes a long time. How to improve the computational efficiency is a difficult problem in data process-ing. The computational tasks in the data processing for side scattering lidar have been analyzed,and the key task which needs to beparallelized for the performance improvement has been summarized. Based on the OpenMP,two parallel algorithms are designed,and the validity of them is demonstrated by some examples. The results show that the two parallel algorithms are reasonable and feasi-ble,and the data processing efficiency of the side scattering lidar can be significantly improved by combination of them in differentperformance devices.

关 键 词：软件工程 并行计算 OPENMP 侧向散射激光雷达 

分 类 号：TN958.98[电子电信—信号与信息处理] TP338.6[电子电信—信息与通信工程]