Receiving Device and Received Signal Processing Method

A receiving device, comprising:

• N receive antennas;
• a combinator;
• a demodulator;
• a processor;
• and
• a non-transitory computer-readable storage medium storing a program to be executed by the processor;
• wherein the N receive antennas are in communication connection to the combinator, the demodulator, and the processor, and the combinator is in communication connection to the processor;
• wherein the demodulator is configured to demodulate N received signals to obtain quality parameters of the N received signals, and send the quality parameters of the N received signals to the processor, wherein the N received signals are obtained by the N receive antennas by receiving a signal sent by a same transmit antenna of a sending device;
• wherein the program including instructions to:
• monitor the quality parameters of the N received signals in real time;
• predict, according to the quality parameters of the N received signals, whether quality of a first combined signal that is output after the combinator performs combination processing on the N received signals is superior to quality of a received signal whose quality is optimal in the N received signals;
• determine, in response to predicting that the quality of the first combined signal is superior to the quality of the received signal whose quality is optimal in the N received signals, the first combined signal, which is output as a to-be-processed signal after the combinator performs combination processing on the N received signals;
• and
• determine, in response to predicting that the quality of the first combined signal is inferior to the quality of the received signal whose quality is optimal in the N received signals, a to-be-processed signal according to M received signals of the N received signals, wherein N is an integer not less than 2 and M is an integer greater than 0 and less than N.