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1·The number of aircraft cleared to use Boeing's global positioning system( GPS)- guided Joint Direct Attack Munition( JDAM) family continues to increase.

能够使用的配备GPS全球定位系统的联合制导攻击武器的空中平台又添新丁。

2·The Kalman filter, SINS technique, transfer alignment and GPS-aided navigation in JDAM system are analyzed based on the system composition and accuracy analysis.

在对JDAM系统组成和精度分析的基础上，详细讨论了JDAM系统的卡尔曼滤波器、捷联惯性导航技术、传递对准和GPS辅助惯性制导等技术。

3·JDAM-equipped bombs are guided by an integrated inertial guidance system coupled to a Global Positioning system (GPS) receiver, giving them a published range of up to 15 nautical miles (28km).

配备JDAM的炸弹，是由一惯性导引组合系统，耦合到全球定位系统(GPS)接收器来导引，赋予其高达15海里(28公里)公布的范围。