| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a frequency difference measuring method capable of accurately measuring an average frequency difference value between a transmission frequency and a reception frequency based on phase change values by calculating the phase change values on the basis of a predetermined sample interval. <P>SOLUTION: The method includes the steps of calculating a phase change value of a demodulated signal on the basis of the predetermined sample interval, and determining the average frequency difference value between the transmission frequency and the reception frequency on the basis of the calculated phase change value. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
