Energy detection system and energy detection method for atmosphere turbulence of wind profile radar

Abstract

The invention relates to the field of atmospheric turbulence energy detection, and particularly relates to an energy detection system and an energy detection method for the atmosphere turbulence of awind profile radar. The system comprises a digital intermediate-frequency receiver used for acquiring an atmospheric turbulence radar echo signal, carrying out digital processing on the radar echo signal to obtain time-domain data, and sending the time-domain data to a first storage module; the first storage module used for storing the time-domain data sent by the digital intermediate-frequency receiver; and a signal processing module used for carrying out signal processing on the time-domain data in the first storage module, generating atmospheric turbulence echo power spectrum data and sending the atmospheric turbulence echo power spectrum data to a second storage module. According to the invention, based on the system and the method, the energy and the friction speed of the atmosphericturbulence can be observed, detected and processed, and data can be obtained in real time. Meanwhile, obtained data are accurate and high in precision. The atmospheric turbulence can be truly restored. Therefore, the system and the method can be applied to the fields of scientific research, atmospheric observation, agricultural application and the like.

Description

technical field [0001] The invention relates to the field of atmospheric turbulence energy detection, in particular to a wind profile radar atmospheric turbulence energy detection system and method. Background technique [0002] Atmospheric turbulence is an irregular random movement in the atmosphere, and the physical properties such as pressure, velocity, and temperature at each point of the turbulence fluctuate randomly. The existence of atmospheric turbulence significantly enhances the vertical and horizontal exchange of momentum, heat, water vapor and pollutants in the atmosphere, which is far greater than the exchange intensity of molecular motion, and at the same time, it has a certain interference with the propagation of light waves, sound waves and electromagnetic waves in the atmosphere effect. The three regions where atmospheric turbulence occurs most often are: the boundary layer at the bottom of the atmosphere, the interior of convective clouds, and the westerly...

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Problems solved by technology

[0005] Due to the limitation of actual detection technology, these two parameters of atmospheric turbulence have been mainly studied in theory, experiment and numerical simulation. A precedent for detection and processing of turbulent energy (TKE) and frictional velocity (FV)

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