Definition

Correlated tracks. Tracks which have been correlated with a flight plan (sometimes this term applies only to tracks for which the Mode A code has been correlated with a call-sign in the code/call-sign list i.e. flight plan association).

Source: ICAO Doc 9684 - Manual on the Secondary Surveillance Radar (SSR) Systems

Description

In general, the word correlation is used to denote some form of association. In air traffic control systems the term has a variety of meanings:

• association of a primary and a secondary radar plot
• association of several consecutive plots into a track
• association of a system track with a flight plan

This article focuses on the correlation of a system track and a flight plan.