Raytheon, in collaboration with Hitachi Kokusai, has been awarded a contract to carry out upgrades on the Japanese Navy’s P-1 maritime surveillance aircraft.

As part of the P-1 maritime surveillance aircraft modernisation project, Raytheon will provide upgraded identification friend-or-foe (IFF) transponders with modern technologies, including a new waveform that can detect and track military aircraft.

"The Japanese Navy will have an increasingly secure and interoperable next generation IFF waveform that does not interfere with other flight-tracking systems."

Raytheon Space and Airborne Systems integrated communication systems vice-president Scott Whatmough said: "The Japanese Navy will have an increasingly secure and interoperable next generation IFF waveform that does not interfere with other flight-tracking systems."

Approximately 70 planes will be fitted with the new transponders during the next several years.

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Prior to the 2020 phase out of the legacy identification system, Nato and other nations have been gradually deploying the Mode 5 waveform due to its superior data security protection.

The military IFF systems are mainly aimed at offering time-critical positive identification of friendly forces.

The procedure is activated automatically by a ground or airborne interrogator, which generates a secure message. The transponder then obtains the interrogation and transmits a secure response.

Defence Technology