Diversity device and receiving method of spherical conformal array antenna based on spatial filtering

Abstract

The invention discloses a diversity device and receiving method of a spherical conformal array antenna based on spatial filtering. The device comprises the spherical conformal array antenna, and the spherical conformal array antenna is provided with a data receiving and storage module, a spatial filtering diversity module, a threshold detection module, a signal detection module and a maximum ratio merge module. The method comprises the steps of 1, building the spherical conformal array antenna; 2, storing data; 3, conducting spatial filtering; 4, merging signals; 5, conducting threshold detecting; 6, conducting signal demodulation; 7, performing outputting. The diversity device of the spherical conformal array antenna based on spatial filtering has the advantages of being low in cost, good in practicability, and capable of achieving diversity receiving for signals fully covered by a half dimensional pitch angle of 90 degrees and an azimuthal angle of 60 degrees and improving diversity gain of a communication system receiving the signals. The receiving method of the spherical conformal array antenna based on spatial filtering has the advantages of being convenient to use, high in operability and capable of increasing a signal-to-noise ratio of a receiving end, enlarging the cover area and avoiding energy consumption of the system through energy detection to wave beams.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to the field of high-speed mobile communication, in particular to a diversity device and a receiving method of a spherical conformal array antenna based on spatial filtering. Background technique [0002] Taking the high-speed railway as an example, compared with the wireless propagation environment of typical cities, general suburbs, and ordinary mountainous areas, the environment along the railway is generally relatively empty. However, there are always special environments along the railway that make the coverage area of ​​the signal field show a band shape. All kinds of reflectors, such as woods, roads, tunnels and viaducts are randomly distributed on both sides of the rails. Many factors such as the direction of these reflectors will also make noise and multipath effects more obvious, so that users on the train accept different and multipath signals. [0003] The array an...

AI Technical Summary

Problems solved by technology

Line arrays, garden arrays and planar arrays have certain limitations in the receiving range, and it is difficult to achieve all-round coverage

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