The Navy has awarded Lockheed Martin [LMT] a $147.5-million contract for the low-rate production and fielding of Surface Electronic Warfare Improvement Program (SEWIP) to help sailors know if an enemy ship is tracking them, the company said Monday.

The contract is for 14 SEWIP systems for upgrading the AN/SLQ-32(V)2 electronic warfare suites on aircraft carriers, cruisers, destroyers and other warships.

SEWIP is designed to be an evolutionary acquisition program through incremental development to upgrade the Raytheon [RTN]-built AN/SLQ-32(V)2 by providing better electronic support receivers and combat system interfaces.

The contract’s total value could reach about $159 million if all options are exercised.

“Our fleets are facing a rapidly changing threat environment in theaters across the globe,” said Joe Ottaviano, SEWIP program director for Lockheed Martin Mission Systems and Training. “This contract allows us to continue providing much needed technological advances that will help outpace our adversaries and protect our warfighters.”