한국항해항만학회:학술대회논문집 (Proceedings of the Korean Institute of Navigation and Port Research Conference)
- 한국항해항만학회 2006년도 International Symposium on GPS/GNSS Vol.1
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- Pages.121-125
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- 2006
A New GPS Receiver Correlator for the Deeply Coupled GPS/INS Integration System
- Kim, Jeong-Won (GNSS Technology Research Center, Chungnam National University) ;
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Hwang, Dong-Hwan
(GNSS Technology Research Center, Chungnam National University)
;
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Lee, Sang-Jeong
(GNSS Technology Research Center, Chungnam National University)
- 발행 : 2006.10.18
초록
A new GPS receiver correlator for the deeply-coupled GPS/INS integration system is proposed in order to the computation time problem of the Kalman filter. The proposed correlator consists of two early, prompt and late arm pairs. One pair is for detecting data bit transition boundary and another is for the correlator value calculation between input and replica signal. By detecting the data bit transition boundary, the measurement calculation time can be made longer than data bit period. As a result of this, the computational time problem of the integrated Kalman filter can be resolved. The validity of the proposed method is given through computer simulations.