发明名称 |
Method for correcting position error in navigation system |
摘要 |
A method for correcting position error in a navigation system enables one to more accurately match a position measurement of a moving object on a digital map. Particularly, the method comprises the steps of: receiving a current position measurement of a moving object from GPS/DR (Dead Reckoning)-based information; correcting the current location measurement using a displacement-corrected value; performing map matching using the corrected current position measurement; calculating variation of correction angle by extracting a current correction angle out of the map matching result; converting and correcting a previous displacement-corrected value to the current correction angle; and compensating the displacement-corrected value by applying a predetermined constant to the converted displacement-corrected value, and storing the compensated displacement-corrected value.
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申请公布号 |
US2004044477(A1) |
申请公布日期 |
2004.03.04 |
申请号 |
US20030652031 |
申请日期 |
2003.09.02 |
申请人 |
JUNG MUN HO;JOE MOON JEUNG |
发明人 |
JUNG MUN HO;JOE MOON JEUNG |
分类号 |
G01C21/00;G01C21/30;G01S5/14;G01S19/14;G08G1/0968;(IPC1-7):G06F19/00 |
主分类号 |
G01C21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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