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本文对近年来在二维数字滤波理论方面的进展作了综述,介绍了二维非递归数字滤波器和二维递归数字滤波器,分别讨论了它们的设计和实现,并介绍了几种检验二维递归滤波器稳定性的方法。最后一节简介二维卡尔曼滤波器,指出了它在实现上存在的问题。
In this paper, the recent advances in 2D digital filtering theory are reviewed. Two-dimensional non-recursive digital filters and two-dimensional recursive digital filters are introduced. Their design and implementation are discussed respectively. Method of dimension recursive filter stability. In the last section, we introduce the 2D Kalman filter and point out the problems in implementation.