Integrated detection radar system for ice and water conditions

A technology for detecting radar and water conditions, which is applied in radio wave measurement systems, satellite radio beacon positioning systems, and measurement devices. Measuring the Effects of Experience

Inactive Publication Date: 2017-01-25
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing radar systems can only detect ice layer or water layer only, and cannot detect ice layer and water depth at the sa

Method used

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  • Integrated detection radar system for ice and water conditions
  • Integrated detection radar system for ice and water conditions
  • Integrated detection radar system for ice and water conditions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This embodiment is an integrated detection radar system for ice and water conditions, such as figure 1 shown. This embodiment includes: a combination antenna of VHF and UHF, the combination antenna is connected with VHF transmitting and receiving device and UHF transmitting and receiving device, and the VHF transmitting and receiving device and UHF The transmitting and receiving device is connected with the control device, the control device is connected with the host through the data transmission device, and the host is connected with the satellite positioning device through the connection device.

[0028] When using radar to detect underground targets, there is a contradiction between the resolution and the detection depth. The radar with a low operating frequency has a large detection depth, but the resolution is not enough. The radar with a high operating frequency can obtain better resolution, but the detection depth is lower. Not ideal, therefore, the choice of r...

Embodiment 2

[0038] This embodiment is an improvement of the first embodiment, and is a refinement of the first embodiment about the transmitting and receiving device. The operating frequency of the VHF transmitting and receiving device described in this embodiment is 100 MHz, and the operating frequency of the UHF transmitting and receiving device is 1.5 GHz.

[0039]The main engine receives the radar data of two operating frequencies transmitted by the control device, and needs to comprehensively process the data of the two frequencies to form a comprehensive detection map of ice thickness and water depth. The 1500MHz transmitting and receiving device in the radar system is used to detect the ice thickness, and the ice thickness can be accurately calculated according to the radar echo delay of the ice layer and the dielectric properties of the ice. The 100MHz transmitting and receiving device is used to detect the water depth, but the electromagnetic wave first passes through the ice lay...

Embodiment 3

[0050] This embodiment is an improvement of the above-mentioned embodiment, and is a refinement of the above-mentioned embodiment with regard to the combined antenna. The combined antenna described in this embodiment is a rectangular box, and a baffle 1 is arranged in the center of the rectangular box, and the two sides of the baffle are respectively a VHF transmitting end 2 and a VHF receiving end 3. Two small boxes are arranged at the positions corresponding to each other on both sides of the middle position of the baffle, which are the UHF transmitting end 4 and the UHF receiving end 5 respectively, such as figure 2 shown.

[0051] The shape of the combined antenna described in this embodiment is basically a square box, the whole is made of metal, and the middle baffle is made of non-metal. This type of antenna is suitable for detecting targets underground.

[0052] Ground penetrating radar generally adopts a butterfly antenna, and the lower the frequency of the antenna,...

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Abstract

The invention relates to an integrated detection radar system for ice and water conditions. The system comprises a VHF (very high frequency) and UHF (ultrahigh frequency) combined antenna, wherein the combined antenna is connected with a VHF transmitting and receiving device and a UHF transmitting and receiving device; the VHF transmitting and receiving device and the UHF transmitting and receiving device are connected with a control device; the control device is connected with a main unit through a data transmission device; the main unit is connected with a satellite positioning device through a connecting device. The integrated detection radar system adopts double-frequency design to measure the thickness of an ice layer and the depth of water below a survey line rapidly and continuously and can measure the ice layer and the depth of the water below the ice layer rapidly, precisely and efficiently, original manual measurement is replaced with a detection radar, the measurement efficiency is increased greatly, a measurement value of a measured point can be obtained in real time, continuous measurement results are obtained and provided for a measurer in numerical value and voice manners, better measurement results and measurement experience are obtained, and the problems of the need for manual hole punching, few sampling points and the like for hydrologic observation in winter are solved.

Description

technical field [0001] The invention relates to an ice-water regime integrated detection radar system, which is a hydrological data collection device and an electronic device for detecting the ice layer and water flow depth. Background technique [0002] At present, the hydrological observation of rivers and lakes in winter in China adopts the method of manual fixed-point drilling to detect ice thickness and water depth. The observation area adopts a fixed distance or determines the sampling point according to experience and then drills the hole for measurement. Only some sparse sampling point results can be obtained. , neither can form continuous measurement results, but also consume a lot of manpower and material resources. Radar can be used to detect the thickness of ice and water bodies. When electromagnetic waves propagate inside ice and water bodies, their path, electromagnetic field strength and waveform change with the dielectric constant and geometric shape of the m...

Claims

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Application Information

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IPC IPC(8): G01S13/88G01S13/87G01S19/14
CPCG01S13/88G01S13/87G01S19/14
Inventor 刘之平郭新蕾付辉刘立鹏郭永鑫王涛杨开林夏庆福崔海涛李甲振黄伟马慧敏徐海卿
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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