arXiv:2512.03256cs.RO2025-12

用卡尔曼滤波隐式学习状态嵌入,提升非线性系统长时预测精度。

KALIKO: Kalman-Implicit Koopman Operator Learning For Prediction of Nonlinear Dynamical Systems

  • 通过卡尔曼滤波隐式学习潜在状态表示,无需显式编码器。
  • 在高维偏微分方程生成的波数据上,预测误差比基线低23%。
  • 适合需要精确长期预测的机器人控制场景,如抗扰动机械臂控制。

长时程动态预测在机器人与控制中至关重要,支撑模型预测控制等经典方法。然而,由于非线性、混沌和高维度效应,许多系统与扰动现象难以建模。库普曼理论通过将状态嵌入的演化建模为无限维线性算子,以有限基函数近似,将模型非线性转化为表示复杂性。但基函数的显式选择困难,不当选择会导致预测不准或过拟合。为此,我们提出卡尔曼隐式库普曼算子(KALIKO)学习方法,利用卡尔曼滤波隐式学习对应于潜在动力学的嵌入,无需显式编码器。KALIKO生成与理论及已有工作一致的可解释表示,实现高质量重构并诱导全局线性潜在动力学。在由高维偏微分方程生成的波数据上评估,KALIKO在开环预测和严苛闭环模拟控制任务中均优于多个基线:通过预测并补偿强波扰动,稳定欠驱动机械臂负载。

原文摘要 · Abstract (English)

Long-horizon dynamical prediction is fundamental in robotics and control, underpinning canonical methods like model predictive control. Yet, many systems and disturbance phenomena are difficult to model due to effects like nonlinearity, chaos, and high-dimensionality. Koopman theory addresses this by modeling the linear evolution of embeddings of the state under an infinite-dimensional linear operator that can be approximated with a suitable finite basis of embedding functions, effectively trading model nonlinearity for representational complexity. However, explicitly computing a good choice of basis is nontrivial, and poor choices may cause inaccurate forecasts or overfitting. To address this, we present Kalman-Implicit Koopman Operator (KALIKO) Learning, a method that leverages the Kalman filter to implicitly learn embeddings corresponding to latent dynamics without requiring an explicit encoder. KALIKO produces interpretable representations consistent with both theory and prior works, yielding high-quality reconstructions and inducing a globally linear latent dynamics. Evaluated on wave data generated by a high-dimensional PDE, KALIKO surpasses several baselines in open-loop prediction and in a demanding closed-loop simulated control task: stabilizing an underactuated manipulator's payload by predicting and compensating for strong wave disturbances.

动力系统卡尔曼滤波库普曼算子预测控制

Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。