Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Marine active phased array radar

A technology of phased array radar and phased array antenna, which is applied in the direction of utilizing re-radiation, radio wave reflection/re-radiation, measuring devices, etc. It can solve the problems of high false alarm rate, high product cost, and closed interface. Achieve the effect of reducing the peak power of the antenna, reducing the physiological impact, and reducing the amount of equipment

Pending Publication Date: 2021-10-22
无锡海工智能科技有限公司
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Marine active phased array radar
  • Marine active phased array radar
  • Marine active phased array radar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1 A kind of marine active phased array radar

[0044] The marine active phased array radar is mainly composed of two parts: the radar host and the servo turntable.

[0045] The radar host mainly consists of an active phased array antenna, a radio frequency processing unit, a digital intermediate frequency unit, a digital processing unit and a power supply unit, and its composition block diagram is as follows figure 1 shown.

[0046] 1. Active phased array antenna

[0047] The active phased array antenna is mainly composed of a waveguide slot antenna, a T / R (Transmitter and Receiver) component, an antenna interface module (Antenna Interface Module) and a wave control / power distribution network, and is used for amplification and space scanning of radio frequency signals Low noise amplification of radiation, radar echoes. Capable of low sidelobe beamforming and power management, such as figure 2 shown.

[0048] in,

[0049] The waveguide slot antenna is c...

Embodiment 2

[0074] Embodiment 2 Application of Active Phased Array Radar Technology in Ocean Freighter Anti-Piracy Surveillance Radar Project

[0075] Merchant ships and cargo ships sailing in the ocean are distributed all over the world all year round. Once they encounter maritime security crises such as pirates, they are often unable to rescue them. Therefore, they need to improve their own independent defense capabilities. The use of active phased array technology enables the marine early warning radar to have fast scanning and early warning capabilities. Based on the platform of a large multinational marine company, this project designed and installed active phased array radars on thousands of large-tonnage ocean-going ships, which met the design indicators and met the needs of users.

[0076] The marine surveillance radar using active phased array technology can quickly scan and find targets in the range of 360° in azimuth and 0° to 70° in elevation, the working distance can reach 40...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/02G01S7/28G01S7/41G01S13/937
CPCG01S7/02G01S7/28G01S7/41G01S13/937
Inventor 施长海
Owner 无锡海工智能科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products