| 摘要 |
<P>PROBLEM TO BE SOLVED: To calculate an accurate positioning result without receiving electric wave transmitted from a GPS satellite. <P>SOLUTION: This positioning system has a propagation time calculation section 4-1 for calculating the propagation time τ<SB>c</SB>(t<SB>n</SB>) indicating the time difference between the receiving time and transmitting time t<SB>n</SB>of an acceleration vector A<SB>r</SB>(t<SB>n</SB>) by a communication section 3-1. A relative position/relative velocity/relative time calculation section 5-1 calculates the relative position δ<SB>p</SB>, relative velocity δ<SB>v</SB>, and relative time δ<SB>τ</SB>with another mobile body 1-2 based on the acceleration vector A<SB>s</SB>(t<SB>n</SB>) calculated by an autonomous navigation sensor 2-1, the acceleration vector A<SB>r</SB>(t<SB>n</SB>) received by the communication section 3-1, and the propagation time τ<SB>c</SB>(t<SB>n</SB>) calculated by the propagation time calculation section 4-1. <P>COPYRIGHT: (C)2009,JPO&INPIT |
