In this paper, the robust positive invariance of given linear state constraint sets of uncertain discrete time systems is studied by means of the mixed monotone decomposition method.

利用混合单调分解方法研究离散非线性、时变凸多面体系统族的线性状态约束集合的鲁棒正不变性。

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So a method of image recognition with rotation and scale invariance is required to satisfy the practical application.

因此，需要寻找一种具有旋转和比例不变性的图像识别方法，以满足实际应用中的需要。

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ESPRIT is a signal parameter estimation method using rotational invariance approaches, which is a subspace decomposing technique.

ESPRIT算法是一种用信号旋转不变性来估计信号参数的方法，属于子空间分解技术。

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