本文主要研究了北斗一代卫星定位的基本原理，并在VC#环境下仿真了北斗系统有源定位的相似椭球法和三边交会法以及三星无源定位等三种算法，并相应作了定位精度与算法效率分析-FOR six thousand years, humans have been developing ingenious ways of navigating to remote destination. A fundamental technique developed by both ancient Polynesians a