Encoder-Decoder Multi-Step Trajectory Prediction Technology Based on LSTM

Aiming at the trajectory and motion characteristics of weakly constrained non-cooperative targets, a LSTM-based encoder-decoder multi-step trajectory prediction technology (EDMTP) is proposed. The introduction of first-order difference processing reduces the time dependence of the trajectory data, a...

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Autor principal: Li Qingyong, He Bing, Zhang Xianyang, Zhu Xiaoyu, Liu Gang
Formato: article
Lenguaje:ZH
Publicado: Editorial Office of Aero Weaponry 2021
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Acceso en línea:https://doaj.org/article/1e16884d9df14a83bd1d0ef52927d6fc
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Sumario:Aiming at the trajectory and motion characteristics of weakly constrained non-cooperative targets, a LSTM-based encoder-decoder multi-step trajectory prediction technology (EDMTP) is proposed. The introduction of first-order difference processing reduces the time dependence of the trajectory data, and obtains a trendless trajectory. Constructing an input and output trajectory data pair, transforming the prediction problem into a supervised learning problem, the change of model performance in the multi-step prediction process is studied to realize end-to-end trajectory prediction. Simulation results show that this method can extract more trajectory features from historical trajectory data, and has obvious advantages in multi-step trajectory prediction. Compared with the trajectory prediction algorithms of KFTP and HMMTP, the error growth rate of EDMTP decrease by 2.18% and 3.52% year-on-year, respectively, and achieves better trajectory prediction results.