Defence sources said the Cabinet Committee on Security, which met here yesterday, cleared the proposal that was sanctioned by the Defence Acquisition Council in November last.
Once the system is in place, the air headquarters will get a composite air situation picture since it will be integrating Air Force, Army, Naval and civilian radars.
The IAF currently has five sector headquarters (nodes) of communication and the plan is to have four more, besides establishment of 10 sub-nodes and up-gradation of the entire system.