대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)
- 대한전자공학회 2000년도 ITC-CSCC -2
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- Pages.1080-1083
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- 2000
On Reducing Estimation Error Caused by Variable Sampling Rate
- Yoon, Gi-Bum (Dept. of Electronics Engineering, Korea University) ;
- Yoon, Dong-Uk (Dept. of Electronics Engineering, Korea University) ;
- Hanseok Ko (Dept. of Electronics Engineering, Korea University)
- 발행 : 2000.07.01
초록
In this paper, we show that a variation in sampling rate give rise to system performance degradation and propose a method to effectively reduce the error. We first capture the variation as a first order autoregressive (AR) model and project it as an additional sensor measurement noise. By considering that the sensor measurements include correlated noise, we perform a decorrelation process and then apply a standard Kalman filter (SKF) to estimate the target-state. As a result of the two-step procedure, we achieve a significant reduction in the target state estimation error.
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