Marine Traffic Surveillance with Shipborne Monitoring Equipment

Abstract

In this paper which was presented at an Institute meeting in London on 17 November 1971, Mr. O'Hagan describes a system for advising cooperating ships in a Surveillance Area. The system includes accurate position sensing through on-board equipment, high frequency telephonic communication, a general survey of all shipping and other hazards in the area based on primary radar, analysis of the data by computer, and the employment of an experienced Master Mariner ashore to assess the situation and offer advice to the cooperating vessels.The discussion was opened by R. H. Farrands, Vice-President of the European Maritime Pilots' Association. The Chair was taken by the President of the Institute, Rear-Admiral G. S. Ritchie, C.B., D.S.C.

The use of VHF radio to Reduce Uncertainty in Marine Encounters

“…positive identification, a number of devices and schemes have been considered. One that seemed to offer considerable promise was described in this Journal by Mr M. O'Hagan, of Plessey, 3 some months before Corbet's perceptive article appeared. Unfortunately it required the acquisition of sophisticated position fixing and communications equipment, which perhaps explains why it has not been given more consideration.…”