Space radio environment measurement and control device and system

Abstract

The invention relates to a space radio environment measurement and control device and system, the device is arranged on a spacecraft, the device comprises an antenna module, a gain programmable amplification module, an analog-to-digital conversion module and a processing module, and the processing module is used for obtaining power spectrum data of each first space position according to digital antenna signals of each first space position, obtaining the power spectrum data of the second spatial position according to the power spectrum data of each first spatial position, the distance between each first spatial position and the second spatial position or the distance between the first spatial positions, and obtaining observation data according to the power spectrum data and the corresponding position information of each first spatial position, the power spectrum data and the corresponding position information of each second spatial position, and the time information of reaching each spatial position. According to the embodiment of the invention, the frequency data of each time and each place can be obtained, so that the monitoring of the full-orbit low-frequency radio environment of the spacecraft is realized.

Description

technical field [0001] The present disclosure relates to the technical field of space radio astronomy observation, in particular to a space radio environment measurement and control device and system. Background technique [0002] Radio source radiation signals below 15MHz play an important role in radio astronomy observations. For example, solar radio burst signals below 15MHz are the main means of tracking coronal ejecta CMEs and early warning of geomagnetic storms and other space weather events. The neutrality of the large redshift Hydrogen observation plays an important role in retrieving the early structure of the universe and its evolution. However, electromagnetic waves below 15MHz from outside the earth cannot propagate to ground antennas due to the impact of the ionosphere. [0003] In space orbits over 500KM, low-frequency radio interference signals below 15MHz on the ground are shielded by the ionosphere and gradually weaken, while radio astronomy signals from ou...

AI Technical Summary

Problems solved by technology

However, radio interference has a great impact on radio astronomy observations, and strong radio interference signals will cause saturation of radio astronomy receivers

[0004] The radio environment of the low-orbit space below 1000Km has not been well measured so far. In addition to the known AKR wave radiation and the ground interference escape signal generated by the instability of the ionosphere in this orbital space, it is not clear what is happening in the global low-orbit space. What other radio interference signals less than 15MHz exist in orbital space, and their differences in global distribution

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