Meteorologic signal processing IP core of low-altitude monitoring radar and real-time data sorting method thereof

Abstract

The invention relates to a meteorologic signal processing IP core of low-altitude monitoring radar and a real-time data sorting method of the meteorologic signal processing IP core. The IP core comprises a digital intermediate frequency phase demodulation module, a pulse compression module, a data rearrangement module, a time domain windowing and FFT module, a noise power estimation module, a point clutter suppression module, an autocorrelation parameter estimation module, a distance averaging module, a distance and intensity correction module and a threshold crossing processing module. The meteorologic signal processing IP core of the low-altitude monitoring radar has the advantages of being simple in structure, high in real-time processing capacity and reliability and the like, target detection and meteorologic detection in the low-altitude monitoring radar are made compatible with each other, and the IP core further has the advantages that the number of system elements is reduced, and integration degree and stability of the system are improved. Through the real-time data sorting method, the complexity of data sorting in space and time can be greatly reduced, and the real-time data sorting method is high in reliability and real time performance and provides a guarantee for precise estimation of noise power.

Description

technical field [0001] The invention relates to the technical field of radar signal processing, in particular to a meteorological signal processing IP core compatible with low-altitude surveillance radar and a real-time data sorting method thereof. Background technique [0002] With the continuous development of modern technology, radar technology has been widely used in the field of meteorology. Meteorological radars have also evolved from traditional conventional weather radars that can only monitor intensity (reflectivity) to today's Pulse Doppler weather radars. At the same time, the demand for weather radar is also increasing. In addition to the weather forecasting system of the Meteorological Bureau and the needs of atmospheric scientific detection and research, the military and civil aviation systems need weather radar to support aircraft flight. Especially in the low- and medium-altitude airspace that is greatly affected by meteorological factors, with the continuou...

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Problems solved by technology

[0013] The purpose of the present invention is to provide a weather signal processing IP core of low-altitude surveillance radar and its real-time data sorting method, which solves the incompatible problem of target detection and meteorological detection in low-altitude surveillance radar

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