基于动态时间规整的火箭尾喷焰识别仿真

doi:10.16182/j.issn1004731x.joss.21-0295

系统仿真学报 ›› 2022, Vol. 34 ›› Issue (1): 126-133.doi: 10.16182/j.issn1004731x.joss.21-0295

基于动态时间规整的火箭尾喷焰识别仿真

刘浩¹, 毛宏霞², 肖志河¹, 刘铮¹

1.北京环境特性研究所,北京 100039;
2.光学辐射重点实验室,北京 100854

收稿日期:2021-04-06 修回日期:2021-05-15 出版日期:2022-01-18 发布日期:2022-01-14
作者简介:刘浩(1993-)，男，博士生，研究方向为目标红外辐射特性与识别。E-mail：liuh188@hotmail.com

Simulation of Rocket Exhaust Plumes Recognition Based on Dynamic Time Warping

Liu Hao¹, Mao Hongxia², Xiao Zhihe¹, Liu Zheng¹

1. Beijing Institute of Environment Features, Beijing 100039, China;
2. Science and Technology on Optical Radiation Laboratory, Beijing 100854, China

Received:2021-04-06 Revised:2021-05-15 Online:2022-01-18 Published:2022-01-14

摘要/Abstract

摘要： 通过分析火箭尾喷焰的红外辐射特性,总结了辐射强度序列的变化规律,提出一种改进的基于动态时间规整(dynamic time warping,DTW)的识别算法。为了提高序列形状相似性度量的效果,使用导数序列计算距离矩阵和匹配路径,依据匹配路径和辐射强度值重新计算距离;采用首尾松弛因子,在一定程度上解决了观测序列长度的不统一影响路径匹配的问题。仿真结果表明：该算法能较好地匹配同一火箭的尾喷焰红外辐射强度序列,在样本较少时实现对火箭的识别。

关键词: 动态时间规整, 时间序列, 目标识别, 火箭尾喷焰, 红外辐射

Abstract: By analyzing the infrared radiation characteristics of the rocket exhaust plumes and summarizing the changing law of the radiant intensity sequence, an improved recognition algorithm based on Dynamic Time Warping algorithm is proposed. In order to improve the effect of sequence shape similarity measurement, the distance matrix and matching path are calculated by the derivative sequence, and the distance is recalculated according to the matching path and radiant intensity value. The problem of path matching affected by the non-uniformity of observation sequence length is solved to a certain extent by using the prefix and suffix relaxation factors. The simulation results show that the algorithm can better match the infrared radiant intensity sequence of exhaust plumes of the same rocket, and realize the classification or recognition of rockets with a small number of samples.

Key words: dynamic time warping(DTW), time series, target recognition, rocket exhaust plumes, infrared radiation

中图分类号:

TP75

刘浩, 毛宏霞, 肖志河, 刘铮. 基于动态时间规整的火箭尾喷焰识别仿真[J]. 系统仿真学报, 2022, 34(1): 126-133.

Liu Hao, Mao Hongxia, Xiao Zhihe, Liu Zheng. Simulation of Rocket Exhaust Plumes Recognition Based on Dynamic Time Warping[J]. Journal of System Simulation, 2022, 34(1): 126-133.

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基于动态时间规整的火箭尾喷焰识别仿真

Simulation of Rocket Exhaust Plumes Recognition Based on Dynamic Time Warping

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