Spherical dual-polarization phased array weather radar
A technology of weather radar and phased array antenna, which is applied in the direction of resonant antenna, antenna, electrical components, etc., can solve the problem of low accuracy of meteorological targets, and achieve the effect of improving accuracy
Inactive Publication Date: 2021-07-02
CMA METEOROLOGICAL OBSERVATION CENT
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[0004] The purpose of the present invention is to provide a spherical dual-polarization phased array weather radar to solve the problem of low accuracy in radar detection of meteorological targets in the prior art
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[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0036] The purpose of the present invention is to provide a spherical dual-polarization phased array weather radar to solve the problem of low accuracy in radar detection of meteorological targets in the prior art.
[0037] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments....
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The invention relates to a spherical dual-polarization phased array weather radar which comprises a spherical crown phased-array antenna module, a digital transceiving module and a signal processing module. The spherical crown phased-array antenna module comprises a spherical support frame and a plurality of dual-polarized microstrip radiation units; the plurality of dual-polarized microstrip radiation units are tightly arranged on the spherical support frame, and the positions of the dual-polarized microstrip radiation units are adjusted, so that the direction of a wave beam emitted by the dual-polarized microstrip radiation units is consistent with the normal direction of an effective aperture of the spherical support frame; the spherical crown phased-array antenna module is used for detecting weather; wireless transmission is carried out between the digital transceiver module and the spherical crown phased-array antenna module; the digital transceiver module is used for generating a frequency modulation signal or a phase coding signal required for detecting a meteorological target and receiving an echo signal reflected by the target; and the signal processing module is connected with the digital transceiver module. According to the invention, the accuracy of radar detection of meteorological targets is improved.
Description
technical field [0001] The invention relates to the technical field of weather radar, in particular to a spherical dual-polarization phased array weather radar. Background technique [0002] Phased array weather radar, with fast scanning speed and multiple processing methods, is the development direction of weather radar and will become the mainstream equipment of the next generation of weather radar. At present, the antennas of phased array weather radars are mostly planar phased array antennas. During beam scanning, the gain and width of the beam will change, the standing wave of the antenna will also fluctuate to a certain extent, and the degree of orthogonality between the two polarizations will also change. These will cause the problem of low accuracy when the weather radar detects meteorological targets. [0003] For example, the patent (CN 105356050 B) proposes a variable directional beam double-array composite microstrip array antenna. This method enables the antenn...
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IPC IPC(8): G01S13/95G01S7/282G01S7/285
CPCG01S13/95G01S7/282G01S7/285Y02A90/10G01S2013/0245H01Q21/205H01Q3/242G01S13/282G01S13/288G01S7/025H01Q25/00H01Q3/34H01Q9/0407G01S13/426G01S13/582G01S7/415H01Q19/195
Inventor 高玉春李忱陈玉宝陈虎李昌兴陆建兵梁海河王箫鹏陈应春步志超韩旭邵楠刘洁
Owner CMA METEOROLOGICAL OBSERVATION CENT