利用实验数据对beidou和GPS的定位性能进行了分析，得到北斗的定位性能稳定的结论-Using the experimental data and the GPS positioning beidou performance analysis, a stable positioning performance Beidou conclusions

道路运输车辆卫星定位系统北斗兼容车载终端技术规范JTT808，GPS国标协议，部标协议。-Road transport vehicle Beidou satellite positioning system is compatible with the vehicle terminal specifications JTT808, GPS GB agreement, the Ministry of standard protocols.