Target Detection by Marine Radar

Front Cover

Radar is a legal necessity for the safe navigation of merchant ships, and within vessel traffic services is indispensable to the operation of major ports and harbours. Target Detection by Marine Radar concentrates solely on civil marine operations and explains how marine surveillance radars detect their targets. The book is fully illustrated and contains worked examples to help the reader understand the principles underlying radar operation and to quantify the importance of factors such as the technical features of specific equipment, the weather, target reflection properties, and the ability of the operator. The precision with which targets are positioned on the radar screen and with which their progress is tracked or predicted depends on how definitely they have been detected, therefore a whole chapter has been devoted to the issue of accuracy. The various international regulations governing marine radar are examined, a brief historical background is given to modern day practice and the book doses with a discussion of the ways in which marine radar may develop to meet future challenges.

 

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Contents

Introduction
1
2
31
4
72
Radar receiver
95
Echo strength in free space
137
Environmental effects on propagation
151
Multipath of point targets
207
Passive point targets
237
Extended target reflections ships and coasts
369
Noise clutter and interference
415
Detection
453
Accuracy of position and track
523
Spreadsheet calculations
557
Worked examples
585
Future possibilities
615
A1 Glossary
637

5
255
7
261
Active targets
285
Multipath factor of extended targets
349
A2 Statistics details
647
Index
653
Copyright

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About the author (2004)

John N. Briggs was employed by GEC-Marconi companies in Leicester, initially as a circuit-design engineer on continuous wave defence radar, microwave moisture meters and marine radar. For nearly 20 years he was in charge of design, trialing, manufacture and international marketing of civil marine aid to navigation racons. He also marketed instrumentation tracking radars and safety radars for gunnery and missile test ranges. Latterly, he acted as Technical Consultant on quasi-military coastal surveillance and civil vessel traffic services projects. Since retirement in 1994, John has continued marine radar related consultancy work for GEC-Marconi, the Maritime and Coastguard Agency, the Royal Ocean Racing Club, and the International Association of Lighthouse Authorities among others. John is a Companion of the Nautical Institute and has published a number of papers in the Journal of Navigation.