A receiver, comprising: a first input end, N first output ends (121,...,12N), N baseband signal recovery modules (131,...13N), and a multiple-input multiple-output equalization module, wherein each baseband signal recovery module comprises a second input end and two second output ends (1312, 1313); the second input end of each baseband signal recovery module is configured to receive a to-be-processed digital signal received by the first input end; one of the two second output ends of each baseband signal recovery module is configured to output a baseband signal, wherein the baseband signal is obtained by the baseband signal recovery module which processes the to-be-processed digital signal; and the other one of the two second output ends is configured to output data enabling control information, wherein the data enabling control information is obtained by the baseband signal recovery module which performs clock error detection on the baseband signal; and the multiple-input multiple-output equalization module comprises 2N third input ends (1411,...,141N;1421,...,142N) and N third output ends (1431,...,143N); each of the 2N third input ends is connected to a corresponding second output end; each of the N third output ends is connected to a corresponding first output end; the multiple-input multiple-output equalization module is configured to: control, based on N pieces of data enabling control information, a time sequence of N baseband signals entering the multiple-input multiple-output equalization module for equalization filtering processing, and perform equalization filtering processing on the N baseband signals using N transmitters as references to obtain recovered data of the N transmitters; and each of the N third output ends is configured to output recovered data of one transmitter, wherein N is equal to a quantity of transmitters connected to the receiver, and N is a positive integer greater than or equal to 1. a first input end, N first output ends (121,...,12N), N baseband signal recovery modules (131,...13N), and a multiple-input multiple-output equalization module, wherein each baseband signal recovery module comprises a second input end and two second output ends (1312, 1313); the second input end of each baseband signal recovery module is configured to receive a to-be-processed digital signal received by the first input end; one of the two second output ends of each baseband signal recovery module is configured to output a baseband signal, wherein the baseband signal is obtained by the baseband signal recovery module which processes the to-be-processed digital signal; and the other one of the two second output ends is configured to output data enabling control information, wherein the data enabling control information is obtained by the baseband signal recovery module which performs clock error detection on the baseband signal; and the multiple-input multiple-output equalization module comprises 2N third input ends (1411,...,141N;1421,...,142N) and N third output ends (1431,...,143N); each of the 2N third input ends is connected to a corresponding second output end; each of the N third output ends is connected to a corresponding first output end; the multiple-input multiple-output equalization module is configured to: control, based on N pieces of data enabling control information, a time sequence of N baseband signals entering the multiple-input multiple-output equalization module for equalization filtering processing, and perform equalization filtering processing on the N baseband signals using N transmitters as references to obtain recovered data of the N transmitters; and each of the N third output ends is configured to output recovered data of one transmitter, wherein N is equal to a quantity of transmitters connected to the receiver, and N is a positive integer greater than or equal to 1.