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简述针对SA和AS政策的对策。

问答题
2022-06-29 21:06
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正确答案
采用一下对策:
应用P-W技术和L1与L2交叉相关技术
研制能同时接收GPS和GLONASS信号的接收机
发展DGPS和WADGPS差分GPS系统
建立独立的GPS卫星测轨系统
建立独立的卫星导航与定位系统

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标签: 大学试题 工学
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