| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a relative positioning system which precisely estimates and calculates an integer bias and an ionospheric delay, regardless of base length values. <P>SOLUTION: When a navigation message and phase information from a GPS receiver 201 and phase information obtained by a reference receiver are input, a relative positioning arithmetic operating section 301 presumes and calculates the integer bias of a wide lane signal composed of L1 waves and L2 waves and the integer bias of a wide lane signal composed of the L1 waves and L5 waves (or the L2 waves and the L5 waves), by using Melbourne-Wubbena relational expression. Then, the integer bias of the L1 wave (or the L2 wave) which has a reference frequency, and the ionospheric delay of the L1 wave are calculated. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
