本文针对SMM中著名的交互式多模型(IMM)估计器，通过将IMM看作是输人交互和子滤波器申联，分析了具有m个参数的MTP矩阵，给出了六条不依赖于应用环境及子滤波器设计的结论-In this paper, SMM Interacting Multiple Model (IMM) estimator, analyzed by the IMM as input interaction and sub-filters Shenlian MTP matrix with m parameters, six does not depend on the application environment and sub-filter design to the conclusion