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中文摘要：
分析了目前北斗系统定位技术的基本原理和不足，对主要的北斗定位技术改进方案进行了比较和分析，指出充分利用三颗地球静止卫星的伪距和载波相位信息与惯导组合，可以建立性能和精度较好的无源定位系统。仿真和实验的结果表明，这种方案切实可行，并具有较高的精度。
英文摘要：
The paper presents the principle and shortcoming of Chinese RDSS positioning technology. Some improvement schemes of the system are compared and analyzed. By fully utilizing pseudo range and carrier phase information and integrating with INS, a passive mode positioning system with better performance and accuracy should be established. Simulation and experiments are performed to validate the scheme. The results showed that this technology scheme is practicable and has high accuracy.
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