Correction system and correction method of signal measurement

A correction system of signal measurement, comprising:

• a processing device, loaded with and executing a plurality of modules, wherein the plurality of modules comprises:
• a signal division module, configured to divide a transmitted signal and a received signal into a plurality of transmitted signal groups and a plurality of received signal groups according to a time length, respectively, wherein the received signal is related to a signal received after the transmitted signal is transmitted, and the transmitted signal is a periodic signal;
• a screening module, configured to select a plurality of to-be-evaluated groups from the plurality of received signal groups according to a correlation between the plurality of transmitted signal groups and the plurality of received signal groups, wherein the correlation corresponds to a delay between the transmitted signal and the received signal, and
• the screening module classifies close correlations between the plurality of transmitted signal groups and the plurality of received signal groups to form a plurality of delay categories, selects one to-be-evaluated category from the plurality of delay categories according to quantities of correlations in the plurality of delay categories, and determines the plurality of to-be-evaluated groups according to the plurality of received signal groups corresponding to the to-be-evaluated category;
• and
• an energy determining module, configured to determine signal energy of the received signal according to signal energy of the plurality of to-be-evaluated groups.