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该文讨论了２－Ｄ一般模型（２ＤＧＭ）在标准边界条件下的渐近观测器的存在性条件及其设计问题．为此，首先将由Ｂｉｓｉａｃｃｏ等人在１９８５年发展起来的相应于对角边界条件的２－Ｄ渐近稳定性理论推广到了具有标准边界条件的２－Ｄ一般模型．在此基础上，借助于局部能控性概念，建立了一系列十分类似于１－Ｄ情形的观测器的存在条件，从这些存在条件出发也可以得到相应的观测器设计算法，最后还得出了２ＤＧＭ的分离性定理．
This paper discusses the existence conditions and design problems of asymptotic observers for 2-D general model (2DGM) under standard boundary conditions. To this end, the 2-D asymptotic stability theory corresponding to diagonal boundary conditions developed by Bisiacco et al. In 1985 is first extended to a 2-D general model with standard boundary conditions. On this basis, with the help of the concept of local controllability, we establish a series of observer existence conditions that are very similar to 1-D cases. From these existing conditions, we can get the corresponding observer design algorithm. Finally, The 2DGM separation theorem.