Channel selection method, circuit, device and computer storage medium

The embodiment of the invention provides a channel selection method, a channel selection circuit, a channel selection device and a computer storage medium. The method comprises the following steps: determining an energy estimation value of each channel in a plurality of channels; wherein the center frequencies of the plurality of channels are different, and the bandwidths of the plurality of channels are all first bandwidths; selecting a target channel from the plurality of channels according to the energy estimation values of the plurality of channels; wherein the energy estimation value of each channel in the plurality of channels is determined, and the following steps are executed at least once: performing analog frequency mixing to obtain an analog signal of which the center frequency is an analog center frequency; performing analog-to-digital conversion on the analog signal to obtain a first digital signal; performing digital mixing and filtering on the first digital signal according to the first bandwid