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Millimeter wave cloud radar based on frequency modulation interrupted continuous wave

A millimeter wave and radar technology, which is applied in the field of cloud measurement in meteorological detection, can solve the problems of radar transportation and high installation requirements, and achieve the effect of solving large operating distance, simplifying radar calibration, and reducing the amount of equipment.

Pending Publication Date: 2019-06-14
南京微麦科斯电子科技有限责任公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In this way, the volume and weight of the equipment have doubled, and there will be higher requirements for the transportation and installation of the radar.

Method used

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  • Millimeter wave cloud radar based on frequency modulation interrupted continuous wave
  • Millimeter wave cloud radar based on frequency modulation interrupted continuous wave
  • Millimeter wave cloud radar based on frequency modulation interrupted continuous wave

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Experimental program
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Embodiment

[0026] Such as figure 1 As shown, a millimeter-wave cloud radar based on FM interrupted continuous wave, the millimeter-wave cloud radar works in the 34GHz-36GHz frequency band; the millimeter-wave cloud radar is installed vertically on the ground, emits electromagnetic waves upward, and measures clouds from the ground to an altitude above 20km parameters. The millimeter-wave cloud radar includes an antenna, a high-frequency box unit, and an antenna base; the antenna is installed above the high-frequency box unit, and the high-frequency box unit is installed on the antenna base.

[0027] Further, the antenna adopts a Cassegrain antenna. In order to achieve a detection height of 20km, it is generally necessary to use a relatively large-diameter antenna. The diameter of the antenna in this embodiment is 1.5m (can be larger or slightly smaller), in order to prevent Rain and snow affect the radar detection performance, and a radome is installed on the antenna.

[0028] The high-...

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Abstract

Provided is a millimeter wave cloud radar based on a frequency modulation interrupted continuous wave. The millimeter wave cloud radar comprises an antenna, a high-frequency box and an antenna base, the high-frequency box comprises a circulator, an emitter, a receiver, a signal processor, a data processing unit and a power supply module. The millimeter wave cloud radar outputs data including a cloud reflectivity intensity, a cloud vertical movement speed, a cloud top height, a cloud bottom height etc. given according to the height; and the millimeter wave cloud radar employs a frequency modulation interrupted continuous wave technology so that problems of large operating distance, high resolution and lack of blind area rapid detection can be well solved.

Description

technical field [0001] The invention belongs to the technical field of cloud measurement in meteorological detection, and relates to a millimeter-wave cloud radar based on frequency-modulated interrupted continuous waves. The millimeter-wave cloud thunder is suitable for civil aviation airports, automatic weather observation stations of the Meteorological Bureau, etc., to measure the meteorological parameters of clouds over the radar. Background technique [0002] The cycle of energy and water in the atmosphere is the most important factor affecting global climate change, among which clouds are the link connecting these two cycles, and precipitation is a basic process of these two cycles. Cloud is a phenomenon of water vapor condensation that occurs at high altitudes. It is composed of tiny water droplets suspended in the atmosphere, ice crystal particles or a visible polymer mixed with the two. Its bottom is above the ground. It takes large water droplets to form rainfall....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/95G01S13/32
CPCY02A90/10
Inventor 张越林思夏曾仲毅
Owner 南京微麦科斯电子科技有限责任公司
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