Digital receiving device, system and method for tracking and observing target radio source

Abstract

The invention belongs to the technical field of signal processing, and specifically relates to a digital receiving device, system and method for tracking and observing a target radio source, aiming to solve the problem that the digital receiving system of a synthetic aperture radio telescope cannot accurately track the target radio source in the prior art problem of observation. The invention includes: analog-to-digital conversion, polyphase filtering, fast Fourier transform and phase compensation modules, which process the input antenna signal and output the spectrum signal of the target radio source; also include, the standard time acquisition module acquires the standard time stamp; the communication module and Host computer communication; the delay parameter temporary storage module stores the delay parameters to be compensated; the control enable module generates the enable signal; the delay module performs delay; the phase parameter generation module temporarily stores the delay parameters to be compensated and converts them into phase compensation parameters . The invention starts accurately and synchronously, updates and aligns the parameters to be compensated in real time, compensates the delay difference changing with time, and realizes accurate and precise tracking and observation of the target radio source.

Description

technical field [0001] The invention belongs to the technical field of signal processing, and in particular relates to a digital receiving device, system and method for tracking and observing a target radio source. Background technique [0002] In the scientific observation of radio astronomy, the synthetic aperture radio telescope is composed of an array containing multiple antennas, which has the characteristics of high spatial resolution and high sensitivity. Each antenna in the antenna array can be aimed at the target radio source for tracking and observation. The target radio source can be an artificial celestial body, such as a satellite, or a natural celestial body, such as the sun. The heliograph located in Ming'antu, Inner Mongolia, is used for tracking and observing the sun, researching and forecasting solar eruption activities. Solar storms caused by solar activities can cause severe disturbances in near-Earth space, seriously threatening space security and the ...

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Problems solved by technology

[0005] In order to solve the above problems in the prior art, that is, the prior art cannot realize the precise tracking and observation of the target radio source by the digital receiving system of the synthetic aperture radio telescope, the present invention provides a digital receiving device for tracking and observing the target radio source The digital receiving device includes an analog-to-digital conversion module, a delay parameter temporary storage module, a polyphase filter module, a fast Fourier transform module, a phase compensation module, a phase parameter generation module, a standard time acquisition module, a control enabling module, a communication module, Delay module;

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