Multi-lag Out of Sequence Measurement 환경에서의 IMM-MPDA 필터 성능 분석

The Performance Analysis of IMM-MPDA Filter in Multi-lag Out of Sequence Measurement Environment

  • 서일환 (한양대학 전기전자제어계측학과/국방과학연구소) ;
  • 송택렬 (한양대학 전자컴퓨터공학부)
  • 발행 : 2007.08.01

초록

In a multi-sensor target tracking systems, the local sensors have the role of tracking the target and transferring the measurements to the fusion center. The measurements from the same target can arrive out of sequence called, the out-of-sequence measurements(OOSMs). The OOSM can arise in a form of single-lag or multi-lag throughout the transfer at the fusion center. The recursive retrodiction step was proposed to update the current state estimates with the multi-lag OOSM from the several previous papers. The real world has the possible situations that the maneuvering target informations can arrive at the fusion center with the random clutter in the possible OOSMs. In this paper, we incorporate the IMM-MPDA(Interacting Multiple Model - Most Probable Data Association) into the multi-lag OOSM update. The performance of the IMM-MPDA filter with multi-lag OOSM update is analyzed for the various clutter densities, OOSM lag numbers, and target maneuvering indexes. Simulation results show that IMM-MPDA is sufficient to be used in out of sequence environment and it is necessary to correct the current state estimates with OOSM except a very old OOSM.

키워드

참고문헌

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