RCS microwave anechoic chamber interference point detection method based on FMCW

The invention belongs to the technical field of microwave anechoic chamber interference point detection, and discloses an FMCW-based RCS microwave anechoic chamber interference point detection method, which comprises the following steps of: 1, setting a threshold value of a radar cross section RCS by testing a anechoic chamber of a required frequency band; 2, a frequency mixing amplification module combining a power amplifier and an ADC is installed, and a single-frequency-point intermediate frequency signal output device is obtained, so that the network analyzer can achieve a ranging function similar to a radar; step 3, measuring an RCS interference point; and 4, scanning a darkroom interference source. Compared with the prior art, the method can identify the part with large interference in the darkroom, does not need time-consuming and labor-consuming manual inspection, greatly improves the working efficiency, improves the detection rate of the position of the wave-absorbing material which does not meet the