一个无线电导航台帮助救援了三名被困于胡德山的登山者。他们被发现之前，依靠一只看门狗取暖，熬过了一个恶劣而又寒冷的夜晚。
An emergency radio beacon helped rescue three climbers on mount hood and a big dog kept them warm. the group endured a foul and a cold night before being found.
无线导航台是一个无线电导航系统。
考虑利用载波相位进行测距的扩频无线电导航系统，该文提出了一种基于导引符号的两导航台载波差分相位的提取方法。
Considering the spread spectrum orientation systems using difference carrier phase to measure distance, this paper proposed a method for acquiring difference carrier phase by using pilot symbol.
考虑利用载波相位进行测距的扩频无线电导航系统，该文提出了一种基于导引符号的两导航台载波差分相位的提取方法。
Considering the spread spectrum orientation systems using difference carrier phase to measure distance, this paper proposed a method for acquiring difference carrier phase by using pilot symbol.
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