モード不確実性下における分布転移安全ホライズンMPC
Distribution-Transfer Safe-Horizon MPC under Mode Uncertainty
有限のモード観測から未知のカテゴリカルモード則の信頼集合を構築し、Wasserstein幾何で確率再配分を正則化することで、分布不一致下でも衝突リスク証明を転移させる安全ホライズンMPCを提案した。
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著者: Stephen Crawford, Nora Ayanian
分類: cs.RO, eess.SY
原文アブストラクト
Scenario-based MPC is an attractive strategy for chance-constrained motion planning that approximates uncertainty via a finite set of sampled scenarios. As a sampling-based method, scenario-based MPC is sensitive to distribution mismatch. We address this problem in the context of Safe-Horizon Model Predictive Control (SH-MPC) with obstacles governed by switching dynamic modes. From finite mode observations, we construct a confidence set for the unknown categorical mode law and derive a multiplicative domination bound that transfers a Safe-Horizon collision-risk certificate from a selected scenario-sampling distribution to every law in the confidence set. Wasserstein geometry is used to regularize probability reallocation among modes according to the similarity of their induced trajectory predictions, while a collision-risk surrogate biases sampling toward dangerous modes. The resulting certificate explicitly quantifies the additional tightening required under distribution mismatch and exposes the multiplicative conservatism that arises when several obstacle-wise transfer factors are combined