Same-time same-frequency transmit-receive test system based on radiation model star

The invention discloses a same-time same-frequency transmit-receive test system based on a radiation model star. The system comprises a same-frequency transmit-receive subsystem, a radiation model star subsystem, a signal simulation subsystem and a microwave anechoic chamber. The same-frequency transmit-receive subsystem is arranged on the radiation model star subsystem, and the radiation model star subsystem and the signal simulation subsystem are both located in the anechoic chamber; the radiation model star subsystem is used for simulating electromagnetic radiation boundary conditions; the signal simulation subsystem is used for transmitting a simulation GNSS radio frequency signal to the same-frequency transceiving subsystem; and the same-frequency transceiving subsystem is used for carrying out self-interference suppression processing on the GNSS radio frequency signal under the microwave darkroom and electromagnetic radiation boundary conditions so as to carry out transceiving antenna isolation and mult