Analysis of BDS Performance for High-precision Relative Positioning

The view-capacity of BeiDou navigation satellite system(BDS)constellation in different latitude and longitude is analyzed by calculating the real BDS broadcast navigation files.In order to analysis the capacity of BDS relative positioning,two BDS/GPS receivers are used to collect about 2hours' data,and baselines are estimated by BDS and GPS,respectively.The precision of baseline estimated by BDS is millimeter-level,correspond to the GPS performance.Stop-and-Go algorithm is used for estimating the baselineon time;precision of baseline estimated by BDS is less than GPS at the direction of X-axis and Y-axis,but the Z-axis direction is almost same.