Ice layer thickness calculation method and device, computer equipment and storage medium
A technology of ice layer thickness and calculation method, which is applied in the field of microwave remote sensing, can solve the problems of low measurement efficiency and small measurement range, and achieve the effect of reducing risk and cost and reliable remote sensing estimation value
Active Publication Date: 2020-08-04
TSINGHUA UNIV
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However, the current remote sensing methods have the problems of small measurement range and low measurement efficiency.
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[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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The invention relates to an ice layer thickness calculation method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring echo waveform data obtainedwhen a height measurement satellite measures an ice layer through a microwave pulse signal; calculating a starting point of an echo waveform rising section in the echo waveform data; determining a search range according to a preset sampling interval according to the starting point of the echo waveform ascending section; acquiring echo power of the echo waveform data and an inflection point of theecho power in the search range; calculating the propagation time of the microwave pulse signal in the ice layer according to the starting point of the echo waveform rising section, the echo power andthe inflection point of the echo power; and calculating the thickness of the ice layer according to the propagation time. With application of the method, the risk and the cost of on-site measurement of the ice layer thickness can be effectively reduced.
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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IPC IPC(8): G01S7/41G01S13/10G06K9/00
CPCG01S7/411G01S13/10G06F2218/10
Inventor 李兴东龙笛
Owner TSINGHUA UNIV