Concept formulation studies of the surveillance apects of the fourth generation air traffic control system
                  September 21, 1971
      
      
  
    
                  Project Report
      
      
  
    Author:
  
      Published in:
  
      MIT Lincoln Laboratory Report ATC-7
      
  
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    Summary
              This report presents a first order feasibility study of four particular candidate surveillance systems for the fourth generation air traffic control system. No attempts has been made to compare these systems, rather we have chosen to examine in detail the most crucial aspects of each. This analysis has brought to light many of the features of these systems. These are detailed along with the research and development required to select the most attractive surveillance system.
          