Harbor surveillance radar

General requirements for a Harbor Surveillance Radar system are described. A system that provides surveillance of marine traffic in the San Francisco harbor area is described and performance is discussed. The system provides capability for detecting small vessels in higher sea states and at longer ranges than is currently available. High resolution allows detection of marine traffic and fixed objects separated by minimum distances and also minimizes the effects of rain and sea clutter. Large 16-inch PPI displays are provided with zoom capability and electronic leading lines to permit operator viewing and interpretation of critical harbor areas. Functional redundance and autoalarm of system malfunction provide reliability and maintainability greater than that currently available.