Radar echo signal processing method for ionospheric f detection

Abstract

The invention discloses a method for processing radar echo signals for ionosphere F detection, aiming at addressing low resolution in ionosphere F detection in the prior art. The method includes the following steps: intercepting the data D of a radar echo signal that corresponds to the ionosphere F; filtering the data D by using a gaussian filter; resolving the autocorrelation D1 from the result after the filtration; generating a symbol correction coefficient from the code pattern of a radar transmitting signal and the fractional order p of the code pattern, performing first symbol correctionon the autocorrelation D1, and performing multi-period accumulation; performing second fuzzy correction on the result from the accumulation, and resolving the height-frequency 2D power spectral density on the result from the second correction; repeating the aforementioned steps, selecting a fractional order p, generating a corresponding symbol correction coefficient, performing corresponding processing, and performing height-frequency-fractional order 3D power spectral density on the result. According to the invention, the method can increase time-delay resolution, lowers high-resolution, andbetter achieves effective detection on the ionosphere F.

Description

technical field [0001] The invention belongs to the technical field of information processing, and in particular relates to a signal processing method of an incoherent scattering radar, which can be used for detecting atmospheric ionosphere F. Background technique [0002] With the development of space technology, mankind has gradually realized the impact of ionospheric space weather on various aerospace undertakings. Incoherent scatter radar can detect the ionospheric space environment, obtain multiple parameters such as electron density, electron temperature, ion temperature, and plasma radial drift velocity, and provide data support for the research and modeling of ionospheric space weather characteristics. Since the early 1960s, developed countries such as the United States and Europe have successively built more than ten incoherent scattering radar systems around the world. my country is also the first incoherent scattering radar in Asia, which was built in Qujing, Yun...

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