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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Ndjeng, A.N. Gruyer, D. Glaser, S. |
| Copyright Year | 2008 |
| Description | Author affiliation: Driver Interactions Res. Unit, INRETS/LCPC Vehicle, Versailles (Ndjeng, A.N.; Gruyer, D.; Glaser, S.) |
| Abstract | This paper presents the localization problem of outdoor vehicles using Interacting Multiple Model (IMM) and Extended Kalman Filter (EKF), in their predictive step without exteroceptive sensors data. Usually, hybridization operates between exteroceptive sensors (e.g. GNSS) and proprioceptive sensors (e.g. Odometer, Inertial Measurement Unit etc.) through a merging algorithm. Common experiments use the GPS receiver PPS time for stamping the odometric, gyrometric and IMU measurements, after what all these sensors are in the same UTC reference time. Now it is well known that the low cost GNSS devices have a very low frequency compared to proprioceptive sensors, combined to a low accuracy. Therefore in order to assess the vehicle positioning at higher frequency for safety applications, the sensors measurements are generally synchronized before being exploited in the merging algorithm. In our approach, the sensors remain in their original frequencies. The objective is to design a reliable and robust system that exploits asynchronous data. In order to reach this goal it is important to guarantee accuracy and integrity of filters even during the predictive steps, when exteroceptive GNSS data are not available: that is proprioceptive-sensors based positioning. We introduce in this paper, a study on the influence of the road bank angle assessment on the output. This parameter is used to correct the gyrometric and inertial unit measurements leading to an improvement of both IMM and EKF predictive output positioning. Tests performed with real data proved the suitability of introducing this parameter in the system. |
| Starting Page | 900 |
| Ending Page | 905 |
| File Size | 296864 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424421114 |
| DOI | 10.1109/ITSC.2008.4732592 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-10-12 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Satellite navigation systems Frequency Measurement units Merging Vehicle safety Position measurement Vehicles Predictive models Global Positioning System Time measurement |
| Content Type | Text |
| Resource Type | Article |
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