| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply synchronization carrier wave generating device which is small in frequency deviation by synchronizing a frequency with a pilot signal by multiplication processing and PLL processing between the pilot signal and a reference signal and multiplying the frequency in a transmitter-receiver for using power supply synchronization carrier wave processing to perform communication. SOLUTION: The synchronization carrier wave generating device comprising: a PLL circuit composed of a complex multiplier 1, a loop filter 2 and a reference signal generator (oscillator) 6; a condition determining part 4; and a frequency multiplier 5 is used to generate a power supply synchronization carrier wave having a small frequency deviation by calculating a frequency Fd by multiplying the pilot signal P by the reference signal sin, synchronizing a fundamental frequency Fd1 with the pilot signal P by the PLL and multiplying the fundamental frequency Fd1. COPYRIGHT: (C)2007,JPO&INPIT
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