Radio astronomical normal-temperature receiver device

The invention provides a radio astronomical normal-temperature receiver device, and the device comprises a celestial body signal receiving and processing module which is disposed on a main focus of a radio telescope, and comprises a feed source, a first coupler, a second coupler, a noise source, a first power divider, a first signal processing sub-module, and a second signal processing sub-module, and the optical signal receiving and processing module comprises a third signal processing sub-module, a fourth signal processing sub-module, a first frequency mixer, a second frequency mixer, a local oscillator signal generation module, a fifth signal processing sub-module and a sixth signal processing sub-module. The radio astronomy normal-temperature receiver device is used for receiving weak radio signals of a celestial body, noise can be coupled through the difference between the feed source and the low-noise amplifier, and after the signals and the noise are amplified, filtered and mixed at the same time, the