Satellite-ground link chromatography vertical cloud field system and method based on ground antenna array

Abstract

The invention relates to a satellite-ground link chromatography vertical cloud field system and method based on a ground antenna array. The system comprises a satellite receiving antenna, a satellite receiver, a synchronous control module, an Internet of Things information transmission module, a cloud processing computing platform and a display platform. The satellite receiving antenna is used for tracking and receiving a downlink signal of a polar orbit satellite and collecting the signal strength and the signal quality of the downlink signal; the satellite receiving antenna and the satellite receiver jointly form a satellite receiving device; the synchronous control module is used for controlling azimuth angles and elevation angles of satellite receiving antennas; the Internet of Things information transmission module is used for transmitting the signal intensity and the signal quality acquired by the satellite receiving antenna to the cloud processing computing platform; the cloud processing computing platform is used for performing time sequence matching, preprocessing and inversion computing on the multiple satellite signals to obtain cloud field information; and the display platform is used for performing three-dimensional visual display on the vertical distribution of the cloud field. The chromatography vertical cloud field is scanned through a plurality of satellite-ground links to realize high-resolution reconstruction of the vertical distribution of the atmospheric cloud field.

Description

technical field [0001] The invention relates to the field of non-cooperative source meteorological information acquisition and application, in particular to a system and method for satellite-ground link tomography vertical cloud field based on a ground antenna array. Background technique [0002] Using propagation effects such as attenuation, time delay, and depolarization of non-cooperative microwave links to retrieve atmospheric precipitation, water vapor density, and other information is an effective supplementary method for conventional atmospheric detection, and has become a high-spatial-resolution meteorological information acquisition and public domain. One of the potential directions of meteorological service. In addition to the line-of-sight microwave links propagated near the ground, the signals of broadcasting and communication satellites are also widely covered around the world. The S (2-4GHz), X (8-12GHz), C (4-8GHz), Ku 12.5~18GHz), Ka(26.5~40GHz), Q(33~50GHz)...

AI Technical Summary

Problems solved by technology

Among the existing methods, ground-based remote sensing can obtain single-point or small-scale cloud macroscopic or microscopic characteristics, but the coverage is limited and there are blind spots; space-based remote sensing can obtain large-scale cloud distribution or microscopic information, but the temporal and spatial resolution is limited, limited by the orbit. and scan mode limitations, it is difficult to further improve

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