Integrated multi-node spectrum sensing method and device

The invention relates to the technical field of signal processing, in particular to an integrated multi-node spectrum sensing method and device, and the method comprises the steps: receiving to-be-measured broadband microwave signals of one or more regions; performing electro-optical conversion on the to-be-measured broadband microwave signals at each node, and obtaining optical carrier microwave signals after the broadband microwave signals are converted from an electric domain to an optical domain; obtaining the optical carrier microwave signal of each node, and carrying out routing selection on the obtained optical carrier microwave signals; and carrying out spectrum shaping on the obtained optical carrier microwave signals, and carrying out sampling quantization on the optical carrier microwave signals subjected to spectrum control by a broadband photon ADC to obtain spectrum information of the to-be-measured broadband microwave signals. According to the method provided by the embodiment of the invention,