Method, system and device for extracting multi-station incoherent scattered radar signals

Abstract

The invention belongs to the field of signal and information processing, and specifically relates to a multi-station incoherent scattering radar signal extraction method, system, and device, aiming to solve the problem that scattering signals are difficult to calculate and extract due to the momentary change of beam crossing scattering volume. The method of this system includes: calculating the direction diagram of the grid antenna array of the transmitting station and each receiving station; The array radar scattering signal acquisition method obtains the scattered signal received by it, otherwise obtains the height of the scattering volume in the direction of the transmitting beam; calculates the scattering volume; integrates the scattering volume with the pattern of the grid antenna array of the transmitting station and the receiving station, Combined with the power of the transmitter of the transmitting station, the scattered signals received by the grid arrays of each receiving station are calculated; the scattered signals received by the grid antenna arrays of each receiving station are obtained cyclically. The invention solves the problem that the scattered signal is difficult to calculate and extract.

Description

technical field [0001] The invention belongs to the field of signal and information processing, and in particular relates to a multi-station incoherent scattering radar signal extraction method, system and device. Background technique [0002] The ionosphere is a part of the ionized plasma region at a height ranging from five to sixty kilometers to one or two thousand kilometers above the earth. It is the key layer most closely related to human activities in the solar-terrestrial space environment. Human spaceflight and so on have an important impact. Among all ionospheric detection methods, incoherent scatter radar is by far the most powerful detection method, which has strong detection function, many parameters (multiple fields and particle components), high precision, good resolution, and large altitude coverage. and many other advantages. [0003] With the development of radar technology, phased array antennas have entered people's field of vision with their advantages...

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Problems solved by technology

[0006] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem that the cross-scattering volume of the multi-station phased array incoherent scattering radar beams changes at all times, the scattering signal is difficult to calculate and extract, the first aspect of the present invention proposes a multi-station The incoherent scattering radar signal extraction method is applied to a phased array incoherent scattering radar system with one transmission and multiple reception, and the method includes:

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