Israeli Companies Develop GPS Protection

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Israeli companies are looking for ways to better protect the GPS navigation system from interference and mainly jamming. Most of the work is classified.

Parallel efforts are underway in the U.S. The Defense Department is looking for alternatives to GPS, techniques that can provide positioning data without the vulnerabilities satellite communication entails. But while they’re waiting for the technology to arrive, companies are looking at techniques to help better guard GPS signals, for both military and commercial applications around the world.

iHLS – Israel Homeland Security

The two primary issues that companies are trying to sort out are jamming, where a powerful signal is used to disrupt a receiver’s ability to decipher the proper GPS link, and spoofing, where a system pretends to be another system.

According to Defense News some of the protection techniques have been around for some time, although they’re getting a closer look and possibly additional applications. Using multiple frequencies and encrypted data allows the GPS receiver to filter through some of the unwanted signal problems, and it’s something Rockwell Collins has been doing for years on weapons systems.