The invention relates to a maximum ratio channel
equalization method of short wave (SW) multiple carrier-
code division multiple access (MC-CDMA), which comprises the following steps: firstly, mapping data frames to be sent in a
displacement mapping module into
cyclic shift with original direct sequences, and delivering the
cyclic shift which is subjected to serial-to-parallel conversion to inverse
fast Fourier transform (IFFT) so as to be changed into
time domain modulating signals; carrying out serial-to-parallel conversion on modulated parallel
time domain signals, inserting
pilot frequency symbols into the obtained parallel
time domain signals after serial-to-parallel conversion, and sending the obtained parallel time domain signals in which the
pilot frequency symbols are inserted to a receiving end by a channel; after the signals which are received by the receiving end and comprise the
pilot frequency symbols and the data frames are subjected to the serial-to-parallel conversion, firstly sending to
fast Fourier transform (FFT) and then evaluating the transmission functions of the SW channel by the received pilot frequency symbols; obtaining equilibrium factors of
maximal ratio combining efficiency (MRCE) through the data frames received by the receiving end in accordance with the evaluated the transmission functions of the channel, and then carrying out the maximum ratio channel
equalization; and carrying out correlation on each sub-carrier datum subjected to the maximum ratio
equalization and sequences generated by local spreading codes, obtaining dispreading data by judgment, and receiving the next data frame by a
receiver continuously. The maximum ratio channel equalization method has a preferable bit
error ratio and is used to reach an anti-interference effect.