Diversity reception device, diversity reception method, reception program, and recording medium

A diversity reception method employed by a diversity reception device that receives a signal that has been digitally modulated by single carrier modulation, said diversity reception method comprising the steps of:

• a branch processing step of performing processing upon each of a plurality of received signals;
• a combining and equalizing step of calculating an equalized signal from said plurality of received signals;
• a transmitted symbol estimating step of calculating an estimated transmitted symbol from said equalized signal;
• and
• a sampling frequency controlling step of performing control of sampling frequencies in front end units, wherein
• said branch processing step comprises:
• a signal band conversion step of converting said received signal to a baseband signal;
• and
• a channel estimation step of calculating an estimated channel characteristic on the basis of said baseband signal and said estimated transmitted symbol, and
• said channel estimation step comprises:
• an echo profile calculation step of calculating an echo profile from filter coefficients of an adaptive filter that takes said estimated transmitted symbol as filter input and generates a desired filter output signal from said received signal,
• said equalized signal is calculated by said combining and equalizing step on the basis of said estimated channel characteristic, and
• the sampling frequencies of said baseband signal are controlled by said sampling frequency controlling step on the basis of said echo profile.