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Ship navigation radar based on double-system transmitter

A ship navigation and transmitter technology, which is applied in the field of ship navigation radar, can solve the problems such as the inability to trigger the beacon source, and achieve the effect of simple technical transformation and high cost performance

Active Publication Date: 2017-04-26
NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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  • Application Information

AI Technical Summary

Problems solved by technology

The radar uses the pulse system of the solid-state power amplifier combined with the continuous wave system to solve the problem of the near-distance blind spot of the navigation radar, but it also cannot trigger the far-end beacon source

Method used

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  • Ship navigation radar based on double-system transmitter
  • Ship navigation radar based on double-system transmitter

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, and the present invention includes but not limited to the following embodiments.

[0014] The invention provides a ship navigation radar based on a dual system transmitter, which includes: an antenna feeder subsystem, a transmitting subsystem, a receiving subsystem, a servo subsystem and a display terminal subsystem. The antenna feeder subsystem includes: antenna, circulator; the transmitting subsystem includes: high-power switch, magnetron, modulation circuit, solid-state power amplifier, signal source and control circuit; the receiving subsystem includes: high amplifier, medium amplifier and receiver.

[0015] The present invention is characterized in that: the display terminal subsystem inputs the control signal, driven by the control circuit, and selects the emission mode of the emission subsystem (two forms of solid-state power amplifier and magnetron...

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Abstract

The invention provides a ship navigation radar based on a double-system transmitter. The radar is characterized in that a display terminal subsystem inputs a control signal, a control circuit is used to carry out driving and an emission mode is selected; under an emission state, firstly, the control circuit makes a control signal generate a corresponding wave-shaped signal, a solid state power amplifier amplifies the signal, a large power switch gates and transmits the signal to an antenna via a circulator and then the signal is radiated to a space; and then the control circuit controls a modulation circuit, a magnetron is used to generate a large power emission signal of a frequency required by the system, and the large power switch gates and transmits the signal to an antenna via a circulator and then the signal is radiated to the space; under a receiving state, a receiving signal is transmitted via the circulator, after low noise amplification of high amplification and mixing amplification of medium amplification, the signal is transmitted to a receiver, and after sampling and signal processing, a display terminal displays a detection result; and the display terminal subsystem inputs the control signal and controls servo so as to control a rotation state of an antenna feeder subsystem. The radar can consider short distance blind area detection and far-end beacon source triggering.

Description

technical field [0001] The invention relates to a ship navigation radar. Background technique [0002] Marine radar is one of the main application areas of radar, and civil ship navigation radar has become the main force in the radar consumer market. The mainstream marine radar products currently on the market still use the form of point frequency pulse signals, magnetron transmitters, and rod antennas. In 2006, the British company Kelvin Hughes (Kelvin Hughes) produced the first S-band solid-state transmitter SharpEyeTM civil marine radar system. In 2008, the company launched the X-band SharpEyeTM. In 2011, JRC Corporation of Japan also launched its S-band solid-state pulse navigation radar product JMA-9172-SA. In the same year, Norway's NAVICO company launched its new generation of solid-state emission continuous wave radar product Broadband4GTM. In 2013, Furuno Corporation of Japan also launched the FAR-3000 radar equipped with an S-band solid-state transceiver. The e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/93G01S7/282
CPCG01S7/282G01S13/937
Inventor 祁华季帅张慧锋
Owner NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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