本文介绍高频水声接收机的设计体会，在某精密测距定位系统中，该设计思想已获得成功地应用，现介绍给同行参考。
The principle in design of the receiver is discussed in this paper long with its successful application in a precise navigation system.
GPS是全球定位系统的简称，是利用导航卫星进行测时和测距的系统。
GPS is the abbreviation of Global Positioning System, which USES the satellite to navigate and measure location.
GPS技术作为一种精密的授时、测距、导航、定位系统，已经开始在交通等领域得到应用。
As a kind of new timing, measuring distance, navigation and positioning system, the technology of GPS is gradually used in traffic and other fields.
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