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Ice layer thickness calculation method, device, computer equipment and storage medium

A technology of ice layer thickness and ice layer, which is applied in the field of microwave remote sensing, can solve the problems of small measurement range and low measurement efficiency, and achieve the effect of reducing risk and cost and reliable remote sensing estimation value

Active Publication Date: 2021-02-12
TSINGHUA UNIV
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  • Application Information

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Problems solved by technology

However, the current remote sensing methods have the problems of small measurement range and low measurement efficiency.

Method used

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  • Ice layer thickness calculation method, device, computer equipment and storage medium
  • Ice layer thickness calculation method, device, computer equipment and storage medium
  • Ice layer thickness calculation method, device, computer equipment and storage medium

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Embodiment Construction

[0062] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0063] The ice thickness calculation method provided by this application can be applied to such as figure 1 shown in the application environment. Wherein, the terminal 102 communicates with the server 104 through the network. The terminal 102 obtains the echo waveform data obtained when the altimetry satellite measures the ice layer through the microwave pulse signal, and transmits the obtained echo waveform data to the server 104, and the server 104 calculates the microwave pulse signal according to the echo waveform data. The travel time inside the layer, and then calc...

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Abstract

The present application relates to a method, device, computer equipment and storage medium for calculating ice thickness. The method comprises: obtaining the echo waveform data obtained when the altimetry satellite measures the ice layer through the microwave pulse signal; calculating the starting point of the rising segment of the echo waveform in the echo waveform data; , determine the search range according to the preset sampling interval; obtain the echo power of the echo waveform data and the inflection point of the echo power within the search range; according to the starting point of the rising segment of the echo waveform, the echo power and the inflection point of the echo power, calculate the propagation time of the microwave pulse signal inside the ice layer; calculate the thickness of the ice layer according to the propagation time. The method can effectively reduce the risk and cost of field measurement of ice thickness.

Description

technical field [0001] The present application relates to the technical field of microwave remote sensing, in particular to a method, device, computer equipment and storage medium for calculating ice thickness. Background technique [0002] Waters tend to freeze at low temperatures. Take lakes as an example. When the lake freezes, ice thickness information is very important for traffic on the ice, fishing operations, and even estimating the primary productivity of the lake during the freezing period. However, on the one hand, due to the lack of measured data, on the other hand, the existing satellite remote sensing retrieval methods are poor in portability, resulting in limited research on ice thickness. [0003] At present, the remote sensing methods used to measure the thickness of the ice layer mainly include the passive microwave method and the active microwave method. The passive microwave method mainly uses the measured data to construct the statistical relationship be...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/41G01S13/10G06K9/00
CPCG01S7/411G01S13/10G06F2218/10
Inventor 李兴东龙笛
Owner TSINGHUA UNIV