Multi-station incoherent scattering radar signal extraction method and system and devices

Abstract

The invention belongs to the field of signal and information processing and particularly relates to a multi-station incoherent scattering radar signal extraction method and system and devices, therebysolving a problem that scattering signals are difficult to calculate and extract since the wave beam cross scattering volume changes constantly. The method comprises the following steps: calculatingdirectional diagrams of grid antenna arrays of a transmitting station and all receiving stations; for the grid antenna array of each receiving station, if the grid antenna array of each receiving station and the grid antenna array of the transmitting station are located in the same base, acquiring received scattering signals through a single-station phased array radar scattering signal acquisitionmethod, and otherwise, acquiring the height of the scattering volume in a transmitting beam direction; calculating a scattering volume; integrating the scattering volume with the directional diagramsof grid antenna arrays of the transmitting station and the receiving stations, and calculating scattering signals received by the grid antenna arrays of the receiving stations in combination with thepower of a transmitter of the transmitting station; and circularly acquiring scattered signals received by the grid antenna array of each receiving station. Therefore, a problem that scattering signals are difficult to calculate and extract is solved.

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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