Journal of Systems Engineering and Electronics ›› 2010, Vol. 32 ›› Issue (11): 2299-2303.doi: 10.3969/j.issn.1001-506X.2010.11.09

• 电子技术 • 上一篇    下一篇

基于可能模型集的期望模式增广算法

周晓辉, 张剑云, 程水英   

  1. 电子工程学院, 安徽 合肥 230037
  • 出版日期:2010-11-23 发布日期:2010-01-03

Expected-mode augmentation algorithm based on likely-model set

ZHOU Xiao-hui, ZHANG Jian-yun, CHENG Shui-ying   

  1. Electronic Engineering Inst., Hefei 230037, China
  • Online:2010-11-23 Published:2010-01-03

摘要:

提出一类基于可能模型集(likely-model set, LMS)的期望模式增广(expected-mode augmentation, EMA)算法,该算法将任意时刻的有效模型集分成可能模型集和增广模型集两个部分。可能模型集由模型后验概率和总模型集的拓扑图确定;对可能模型集加权组合,生成增广模型集。然后,基于两模型集的并集对目标的状态进行估计。该算法能够保持期望模式增广算法的精度,同时大大降低计算量。仿真结果验证了本文算法的性能。

Abstract:

A class of expected-mode augmentation (EMA) algorithm based on likely-model set (LMS) is proposed. The effective model set is divided into LMS and expectedmode set at each time step. The LMS is decided according to the posterior model probabilities and the topology, and the expectedmode set is generated by the weighted combination of the likely-model set. Then, the target state is estimated based on the union set of the two model sets. The algorithm maintains the precision of the EMA algorithm and reduces the computational load. Simulation results validate the performance of the algorithm.