Digital Radar Warning Receiver

Northrop Grumman Corporation
Falls Church, VA

Northrop Grumman Corporation recently received a $124.7 million award for production of AN/APR-39D(V)2 digital radar warning receiver and electronic warfare management systems. The award followed the successful completion of engineering and manufacturing development activities, including a series of rigorous tests that verified the system's readiness for production and the demands of combat operations.

The electronic battlefield becomes more complex every day, dominated by an array of multispectral (RF/IR/EO) threats that jeopardize aircrew survival. To survive, aircrews must not only have sophisticated sensors and countermeasures, but a way to manage them.

The Northrop Grumman APR-39D(V)2 Radar Warning Receiver (RWR)/Electronic Warfare Management System (EWMS) is being designed to maximize survivability by improving aircrew situational awareness via interactive management of all onboard sensors and countermeasures. The APR-39D(V)2 will merge the C(V)2 baseline with the Northrop Grumman Digital Receiver product line, providing advanced RWR capability for today's and tomorrow's RF threat environment. The system will feature the latest technology in a small, lightweight configuration that protects a wide variety of fixed-, rotary- and tilt-wing aircraft from today's most modern threats.

Basically, the AN/APR-39D(V)2 is a small, lightweight digital radar warning receiver and electronic warfare management system that provides 360-degree coverage to detect and identify radio frequency threats to an aircraft. The system consists of: four new dual-polarized E through M band (high band) antennas, and a C though D band (low band) direction of arrival antenna; new quadrant receivers (two to four per aircraft) with each receiver having two channels that can accept signals from two E through M band antennas; a new radar data processor with two wideband digital receivers; and a crystal video receiver processor and a Quad Core i7-based processor.

As an electronic warfare management suite, the APR-39D(V)2 can display data from multiple onboard sensors and automatically initiate countermeasures to protect aircrews. The digital receiver technology, shared across proven electronic warfare systems, provides the ability to respond rapidly to new threats.

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