Modified Subspace Identification for Periodically Non-uniformly Sampled Systems by Using the Lifting Technique

作者：Ding Jie^*; Lin Jinxing

来源：Circuits, Systems, and Signal Processing, 2014, 33(5): 1439-1449.

DOI：10.1007/s00034-013-9704-2

• Parameter estimation
• Subspace identification
• Casuality constraint
• Lifting technique
• Non-uniform sampling

This paper studies identification problems for a class of multirate systems-non-uniformly sampled systems. The lifting technique is employed to handle the non-uniformly sampled input and output data, a lifted state-space model is derived to represent the non-uniform discrete-time systems, and a novel subspace identification method is proposed to deal with the casuality constraints in the lifted model. Simulation results show that the algorithm is effective.

• 出版日期2014-5
• 单位南京大学