Marine active phased array radar

Abstract

The invention discloses a marine active phased array radar, and belongs to the field of radar system design. The marine active phased array radar mainly comprises a radar host and a servo turntable, wherein the radar host mainly comprises an active phased array antenna, a radio frequency processing unit, a digital intermediate frequency unit, a digital processing unit and a power supply unit. The active phased array radar provided by the invention can effectively discover and track far and near distance targets on the sea surface.

Description

technical field [0001] The invention relates to a marine active phased array radar, which belongs to the field of radar system design. Background technique [0002] When navigating at sea, large merchant ships, cargo ships and other offshore platforms must be able to quickly identify medium and long-distance surface ships, speedboats and other targets in a changeable ocean climate in order to respond quickly and resist invasion. As a traditional radio equipment, marine radar can work all-weather under severe weather conditions, has a flexible target discovery and identification mechanism, and is more cost-effective than other photoelectric detection equipment. It has become the first choice for large ships when building a safety surveillance system . [0003] At present, domestic and foreign marine radars are basically divided into two categories. One is the military ship radar system, which has a long range and a large search range. However, the cost of military equipment ...

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Problems solved by technology

[0003] At present, domestic and foreign marine radars are basically divided into two categories. One is the military ship radar system, which has a long range and a large search range. However, the cost of military equipment is too high and it is not suitable for the civilian marine radar field.

The second category is a separate marine anti-collision radar, such as Japan's Furuno marine radar, although its use is flexible and cost-effective, but there are two major defects: one is that the radar is used to avoid large targets and search for small pirate ships Second, the interface is not open, and system integration and data fusion processing cannot be implemented, which directly leads to insufficient ability to discover, track and verify sea targets, high false alarm rate, and low intelligence level

[0006] (1) More distributed T / R components are required, and the product cost is relatively high, and civilian cargo ships generally cannot bear such a high cost;

[0007] (2) Insufficient multi-target detection and tracking capabilities, especially for slow and small target detection and recognition on the sea surface, resulting in a decline in early warning capabilities for small fishing boats or speedboats;

[0008] (3) Sea clutter is difficult to suppress, resulting in a higher probability of false alarms

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