Wang Siyuan, Wang Gang, Fu Qiang, Song Yafei, Liu Jiayi
Air Defense and Antimissile School, Air Force Engineering University, Xi'an 710051, China.
Entropy (Basel). 2023 May 11;25(5):781. doi: 10.3390/e25050781.
As military technology continues to evolve and the amount of situational information available on the battlefield continues to increase, data-driven deep learning methods are becoming the primary method for air target intention recognition. Deep learning is based on a large amount of high quality data; however, in the field of intention recognition, it often faces key problems such as low data volume and unbalanced datasets due to insufficient real-world scenarios. To address these problems, we propose a new method called time-series conditional generative adversarial network with improved Hausdorff distance (IH-TCGAN). The innovation of the method is mainly reflected in three aspects: (1) Use of a transverter to map real and synthetic data into the same manifold so that they have the same intrinsic dimension; (2) Addition of a restorer and a classifier in the network structure to ensure that the model can generate high-quality multiclass temporal data; (3) An improved Hausdorff distance is proposed that can measure the time order differences between multivariate time-series data and make the generated results more reasonable. We conduct experiments using two time-series datasets, evaluate the results using various performance metrics, and visualize the results using visualization techniques. The experimental results show that IH-TCGAN is able to generate synthetic data similar to the real data and has significant advantages in the generation of time series data.
随着军事技术不断发展,战场上可用的态势信息量持续增加,数据驱动的深度学习方法正成为空中目标意图识别的主要方法。深度学习基于大量高质量数据;然而,在意图识别领域,由于实际场景不足,它常常面临数据量少和数据集不平衡等关键问题。为解决这些问题,我们提出一种名为改进豪斯多夫距离的时间序列条件生成对抗网络(IH-TCGAN)的新方法。该方法的创新主要体现在三个方面:(1)使用变换器将真实数据和合成数据映射到同一流形,使它们具有相同的内在维度;(2)在网络结构中添加恢复器和分类器,以确保模型能够生成高质量的多类时间序列数据;(3)提出一种改进的豪斯多夫距离,它能够测量多变量时间序列数据之间的时间顺序差异,使生成结果更合理。我们使用两个时间序列数据集进行实验,使用各种性能指标评估结果,并使用可视化技术对结果进行可视化。实验结果表明,IH-TCGAN能够生成与真实数据相似的合成数据,并且在时间序列数据生成方面具有显著优势。