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International HARM precision navigation upgrade - a GPS/INS missile upgrade that improves effectiveness and minimizes friendly-fire accidents

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2 Author(s)

The high speed anti-radiation missile (HARM) is an air-to-surface tactical missile designed to seek and destroy enemy radar-equipped air defense systems. Unfortunately, the HARM is "no respecter of persons," and it has been known, most notably during the Gulf War, to attack "friendly" targets. The international HARM upgrade project is a tri-national missile technology project sponsored by the United States, Italian, and German governments. The HARM precision navigation upgrade (PNU) program has as its goal, the development and installation of a PNU into the HARM that will improve the weapon's effectiveness, while nearly eliminating the likelihood of fratricide. The precision navigation system consists of a modern selective availability anti-spoofing module (SAASM) based Global Positioning System (GPS) receiver, and an inertial measurement unit (IMU), consisting of state-of-the-art fiber optic gyros and a modern micro-machined accelerometer triad.

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IEEE Aerospace and Electronic Systems Magazine  (Volume:18 ,  Issue: 5 )