The present invention provides a receiver, including: a crystal oscillator, a phase-locked loop, a radio frequency module, an analog baseband processing module, an adjusting module, and a digital baseband processing module, where the radio frequency module demodulates a radio signal to obtain an original analog baseband signal; the analog baseband processing module processes the original analog baseband signal to obtain a first digital baseband signal; when demodulating the first digital baseband signal, the digital baseband processing module detects the rate deviation and sends the rate deviation to the phase-locked loop; and the adjusting module adjusts the first digital baseband signal, so that a rate of an adjusted first digital baseband signal is consistent with a rate of a preset reference signal.