Anti-interference radio astronomical radiometer system based on agile transceiver

Abstract

The invention discloses an anti-interference radio astronomical radiometer system based on an agile transceiver. The system comprises a radio telescope antenna, a broadband low-noise amplifier, a program-controlled agile transceiver, an all-programmable controller and a host computer, an input terminal of the broadband low-noise amplifier is connected with a feed source output terminal of the radio telescope antenna, an output terminal of the broadband low-noise amplifier is connected with an input terminal of the program-controlled agile transceiver, and the program-controlled agile transceiver is connected with the host computer through the all-programmable controller. According to the system, radio interference signals can be effectively and rapidly avoided, interference elimination in an observation band and the total power observation of traffic can be realized, and stable and high-quality observation data is further obtained.

Description

technical field [0001] The invention relates to a fast anti-interference radio astronomy radiometer system based on an agile transceiver, which belongs to the field of radio astronomy and is mainly suitable for total power radio astronomy observation in a high radio interference environment. Background technique [0002] In terms of early warning and forecasting of space weather, solar bursts are the driving source of space weather events, and the observation of solar radio bands is very important. [0003] Solar eruption is a violent energy release process that occurs in the solar atmosphere-corona, the main form is solar flare and coronal mass ejection (CME), which is essentially the result of the interaction between magnetic field and magnetic field, magnetic field and plasma. Such a violent eruption process may cause severe disturbances to the space environment around the earth and have a disastrous impact on the normal operation of modern society. It can be seen that t...

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Problems solved by technology

[0019] However, the current radio interference problem (Radio Frequency interference RFI) seriously interferes with the work of the radio astronomy radiometer, and more and more frequencies are occupied by the expansion of radio services, which makes the radio astronomy observation bandwidth and interference a pair of contradictions. If Requires increased bandwidth but also increases risk of radio interference

At the same time, the observation frequency band of the traditional superheterodyne receiver is fixed, so if radio interference signals appear in the observation frequency band, radio interference needs to be suppressed by adjusting the local oscillator, band-pass filter, etc. Difference

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