High-power navigation radar based on microwave coherent combination of magnetrons

A technology of coherent synthesis and magnetron, which is applied in the direction of radio wave reflection/re-radiation, radio wave measurement system, and utilization of re-radiation. and other issues to achieve the effect of long-distance detection and safe navigation

Inactive Publication Date: 2019-04-26
NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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Problems solved by technology

Fierce market competition has led to the focus of radar on the price of products rather than the application of new technologies. Unless there are clear provisions in legal provisions, those technologies with high prices will not be applied.
[0005] At this stage, mainstream navigation radars generally use magnetron or solid-state transmitters. The cost of solid-state systems is generally high, and they have not been widely used in this field. Tra

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  • High-power navigation radar based on microwave coherent combination of magnetrons

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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 high-power navigation radar based on magnetron microwave coherent synthesis, which is mainly used to detect various objects around the ship carrier, such as ships, navigation marks, bridge piers, embankments, ice floes, islands, icebergs, coastlines, etc., to provide The crew provides intuitive and clear target distance and azimuth data, and sends warning messages as needed to avoid dangerous obstacles, prevent collisions, and ensure safe navigation or smooth anchoring of the ship.

[0015] refer to figure 1 , the embodiment of the present invention includes an antenna feeder subsystem, a transmitting subsystem, a receiving subsystem, a display terminal, a microwave source and a servo. Among them, the antenna feeder subsystem includes: anten...

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Abstract

The invention provides a high-power navigation radar based on microwave coherent combination of magnetrons. A display terminal inputs a control signal, two modulator circuits are driven to be controlled by a control circuit, two same control signals are generated, and the magnetrons are controlled to generate two transmission signals with set frequency; the control signals driven by the control circuit control an externally-injected microwave source, two same microwave signals are generated, two composite signals are input into a directional coupler, final transmission signals are formed, coupling signals of the two directional couplers are fed back to the control circuit, and in this way, phase-shift values of externally-injected microwave source signals in the system are judged. According to the radar, the coherence of high-power signals synthesized by two circuits according to circulators is guaranteed, a waveguide power combiner is used for achieving coherent combination of the high-power transmission signals generated by the two magnetrons at last, the navigation radar is launched at high power, remote detection can be achieved, and safe navigation or smooth mooring of ships is guaranteed.

Description

technical field [0001] The invention relates to a high-power navigation radar. Background technique [0002] Navigation radar is installed on various ships to detect various objects around the ship carrier, such as ships, navigation marks, bridge piers, embankments, ice floes, islands, icebergs, coastlines, etc., to provide the crew with intuitive and clear target distance and azimuth data, according to It is necessary to issue warning messages to avoid dangerous obstacles, prevent collision accidents, and ensure safe navigation or smooth anchoring of ships. [0003] Since the German Chrisian Hulsmeyer applied for a monostatic pulse radar patent in 1904 and promoted it for ship collision avoidance at sea, marine navigation radar has experienced a century of development. The earliest commercial marine radar appeared in 1946; in 1960, the International Conference on Marine Life Safety recommended the use of radar to prevent ship collision accidents. In 1974, the conference st...

Claims

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Application Information

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IPC IPC(8): G01S13/93
CPCG01S13/937
Inventor 季帅祁华张慧锋
Owner NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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