Phased array weather radar and adaptive frequency selection method and system thereof

Abstract

The invention discloses a phased array weather radar and a self-adaptive frequency selection method and system thereof. When a prior signal-to-noise ratio is greater than or equal to a set threshold value, it is indicated that an airspace interference signal is strong, and the interference signal is avoided by adjusting an azimuth angle and / or a pitch angle; if interference signals can be avoided by adjusting the azimuth angle and / or the pitch angle, that is, the prior signal-to-noise ratio under a certain azimuth angle and pitch angle is smaller than a set threshold value, the working frequency is recorded and stored; if the interference signal cannot be avoided by adjusting the azimuth angle and / or the pitch angle, that is, the prior signal-to-noise ratio under any azimuth angle and pitch angle is greater than or equal to a set threshold value, the working frequency is not recorded and stored; and all working frequencies capable of avoiding interference signals by adjusting azimuth angles and / or pitch angles are obtained, frequency selection is carried out in the working frequencies, and the interference signals can be effectively avoided by combining the corresponding azimuth angles and pitch angles. The method does not need manual participation, does not need to add a hardware structure, and is simple in processing algorithm.

Description

technical field [0001] The invention belongs to the technical field of weather radar detection, in particular to a phased array weather radar and an adaptive frequency selection method and system thereof. Background technique [0002] Current weather radars have been widely used in weather forecasting, airport monitoring, and military meteorological monitoring. With the deterioration of the earth's environment, existing weather radars such as digital weather radars, Doppler weather radars and networked Doppler weather radars can no longer meet the requirements Complicated weather and sudden weather requirements, such as fine wind weather forecast (rainstorm, hail typhoon, lightning, etc.), shear wind monitoring, downdraft monitoring, and airport bird monitoring, etc. X-band single-polarization phased-array weather radar, X-band dual-polarization weather radar and X-band cooperative networking radar system have outstanding advantages in high resolution and high coverage, and ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a phased array weather radar and its self-adaptive frequency selection method and system, to solve the complex operation and large amount of engineering in the prior art, no real-time performance, complex circuit structure and high cost, and issues affecting the signal processing capabilities of the system

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