Relatively real-time radio wave environment testing method

Abstract

The invention relates to a relatively real-time radio wave environment testing method, which comprises the steps of S0, providing a radio wave environment testing system; S1, installing the radio wave environment testing system on a radio telescope, and enabling a test antenna to be close to a feed source opening face of the radio telescope; S2, carrying out calibration on the radio wave environment testing system by adopting a standard noise source; S3, carrying out a horizontal polarization radio wave environment test and a vertical polarization radio wave environment test in daytime test time periods on weekdays and weekends respectively by adopting the radio wave environment testing system; S4, carrying out calibration on stored data; and S5, and drawing a radio wave environment spectrogram at different time in the same direction and a radio wave environment spectrogram in different directions at the same time of the test antenna according to the power of a test antenna opening face. The relatively real-time radio wave environment testing method provides important support for radio astronomical observation interference eliminating strategies, receiver transformation and station radio management.

Description

technical field [0001] The invention relates to a radio astronomy technology, in particular to a relatively real-time radio wave environment testing method. Background technique [0002] Radio telescopes have extremely high system sensitivity and are used to receive weak celestial signals in the universe. The lower frequency bands of radio astronomy services are susceptible to interference from terrestrial and space radio services (mainly affected frequency bands are L and S bands, the main scientific needs of this band For pulsar observations, continuum observations, and national lunar exploration missions, etc.), the reason is that radio telescopes are equipped with wideband receivers, and multiple interference signals from the ground, space, etc. are connected to the receiver system through antenna side lobes. [0003] There are many electronic devices in the radio telescope system, between systems and in the site. With the development and application of high-frequency e...

AI Technical Summary

Problems solved by technology

This radio wave environment test method has certain advantages for the early site selection of radio astronomy stations and the comprehensive evaluation of the radio wave environment of the station, but the radio wave environment test for the astronomical stations that have been determined or are in operation lacks real-time signal information; and many existing Electromagnetic compatibility design and shielding protection were not considered in the preliminary design stage of the station, and its own equipment and external wireless communication services have an increasing impact on radio astronomy observations