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SYMBOL TIMING CORRECTING CIRCUIT, RECEIVER, SYMBOL TIMING CORRECTING METHOD, AND DEMODULATION PROCESSING METHOD
SYMBOL TIMING CORRECTING CIRCUIT, RECEIVER, SYMBOL TIMING CORRECTING METHOD, AND DEMODULATION PROCESSING METHOD
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机译:符号定时校正电路,接收器,符号定时校正方法和解调处理方法
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摘要
A receiver includes a frequency characteristics calculating unit receives a received signal that includes a known pilot sequence and an initial symbol timing signal that is generated based on a correlation value of the received signal. The frequency characteristics calculating unit performs fast Fourier transform (FFT) on the received signal according to the initial symbol timing signal, extracts the pilot data sequence from the received signal, and calculates frequency characteristics of a channel between the receiver and a transmitter that has transmitted the received signal. An inverse fast Fourier transform (IFFT) unit performs IFFT on the frequency characteristics to thereby generate a channel impulse response. A symbol timing correction unit corrects a symbol timing using the channel impulse response.
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