| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a phasing distortion and frequency offset compensation transmission method capable of being utilized as a method for compensating the frequency difference of the reference signal generator of a transmitter and a receiver when it is present in digital radio communication using a moving communication station where an environment variously changes. <P>SOLUTION: In digital communication using pilot signals, high frequency signals are received carried digital signals are demodulated from the high frequency signals and the pilot signals are extracted from the received high frequency signals or the demodulated digital signals. The spectrum of the extracted pilot signals is obtained and a phasing component or a frequency offset component is obtained from the spectrum. By using either one of the components, the received high frequency signals are compensated or original digital signals are estimated from the demodulated digital signals. <P>COPYRIGHT: (C)2003,JPO |
