This paper introduces a new nonlinear observer for state estimation of linear time invariant systems. The proposed observer contains a (nonlinear) cubic term in its error dynamics. "For the final version of this article, please refer to the published version in Int. Jr. of Adaptive Control and Signal Processing. The differences between the published and arxiv version are substantial and significant"

中文翻译：

---

用于线性系统状态估计的 Luenberger 型三次观测器

本文介绍了一种新的非线性观测器，用于线性时不变系统的状态估计。建议的观测器在其误差动态中包含一个（非线性）三次项。“对于本文的最终版本，请参阅 Int. Jr. of Adaptive Control and Signal Processing 中的已发布版本。已发布版本与 arxiv 版本之间的差异是实质性且显着的”