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Radar snow depth automatic observer based on stepping frequency

A technology of automatic observation and stepping frequency, which is applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problems of poor detection accuracy and achieve the effects of low cost, narrow radar bandwidth, and improved equipment reliability

Active Publication Date: 2019-05-21
南京信大气象科学技术研究院有限公司
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is the technical problem of poor detection accuracy existing in the prior art

Method used

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  • Radar snow depth automatic observer based on stepping frequency
  • Radar snow depth automatic observer based on stepping frequency
  • Radar snow depth automatic observer based on stepping frequency

Examples

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Embodiment 1

[0034] This embodiment provides a radar snow depth automatic observer based on the stepping frequency, such as figure 1 , including a radar host and a power supply module for power supply, the operating frequency band of the radar host is K-band; the vertical distance between the radar host and the snow measuring board installed on the ground and at the same level as the snow measurement and observation surface is less than 2.5 meters. Example set to 3 meters. Such as figure 2 , the radar host includes a transmitting antenna, a receiving antenna, a linearly amplified power amplifying unit, a signal generating unit connected in sequence with the transmitting antenna, and a receiver unit connected with the receiving antenna, and the signal generating unit and the receiver unit are simultaneously connected with a signal processing unit unit, the signal processing unit is connected with a communication module, and the signal generating unit interacts with the receiver unit;

[...

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Abstract

The invention relates to a radar snow depth automatic observer based on stepping frequency, wherein the radar snow depth automatic observer settles a technical problem of low detecting precision. A vertical distance between a radar host and a snow measuring plate which is mounted on ground and is level with a snow land measuring observing surface is not lower than 2.5 meters. The radar host comprises a transmitting antenna, a receiving antenna, a power amplifying unit and a signal generating unit, wherein the power amplifying unit and the signal generating unit are successively connected withthe transmitting antenna and the power amplifying unit performs linear amplification, and a receiver unit which is connected with the receiving antenna. The signal generating unit and the receiver unit are connected with a signal processing unit. The signal processing unit is connected with a communication module. The signal generating unit performs interaction with the receiver unit. The includedangle alpha between the wave beam center of the transmitting antenna and the receiving antenna and the vertical plane of the radar host is higher than 10 DEG. The signal generating unit comprises a signal generator for generating a stepping FM continuous wave signal and an excitation source. The radar snow depth automatic observer settles the problem in a relatively good manner and can be used for snow land depth measurement.

Description

technical field [0001] The invention relates to the field of snow depth measurement, in particular to a radar snow depth automatic observer based on stepping frequency. Background technique [0002] The detection of snow depth can not only provide meteorological data, but also closely related to people's daily life. Snow disasters bring huge losses to our country every year, such as sudden heavy snowstorms that crush trees and crops, traffic jams caused by excessive snow accumulation, mountain avalanches, etc., which seriously threaten the personal and property safety of the people. Snow depth detection can effectively monitor the occurrence of these events and help to deal with them in time to reduce disaster losses. At the same time, the detection of ground snow depth has practical application significance in military, agricultural, meteorological and other fields. [0003] Among the various methods of snow depth detection, manual use of snow gauges to measure snow thick...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/14G01S13/08
CPCY02A90/10
Inventor 李忱林思夏曾仲毅张越
Owner 南京信大气象科学技术研究院有限公司
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