reference system n a system that uses coordinates to establish position Synonym(s) coordinate system frame of reference reference frame
News & Articles reference system Northrop Grumman Provides LCR-100 Attitude and Heading Reference System for Sikorsky S-92A Helicopter Offshore Rig ... BUCKEBURG, Germany, June 26, 2013 /PRNewswire/ -- Northrop Grumman Corporation (NYSE: NOC) is supplying a modified LCR-100 Attitude and Heading Reference System (AHRS) for the newly certified offshore ... June 26, 2013 - PR Newswire via Yahoo! Finance