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Journal Article
Multi-model Switching for Car Navigation Containing Low-Grade IMU and GPS Receiver
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- Authors
- Seong Yun Cho, Byung Doo Kim, Young Su Cho, Wan Sik Choi
- Issue Date
- 2007-10
- Citation
- ETRI Journal, v.29, no.5, pp.688-690
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Project Code
- 07MD2400, Development of Indoor/Outdoor Seamless Positioning Technology, Wan Sik Choi
- Abstract
- This letter presents a filter for a car navigation system integrating a low-grade inertial measurements unit (IMU) and a global positioning system receiver. The filter is designed according to the state variables to be estimated and the usable measurements. The usable measurements change from case to case, and the estimative state variables also change due to the measurements; therefore, multiple models must be used for real environmental maneuvers. In this letter, four models for land navigation are chosen and switched by rearranging the system matrix and resetting the error covariance matrices.
- KSP Keywords
- Car navigation system, GPS Receiver, Inertial Measurements Unit, Low-grade, Multi-model switching, Multiple models, State variables, System Matrix, error covariance matrices, global positioning system(GPS)