| 摘要 |
PURPOSE:To enable processing after demodulation by one sequence of signal processing by varying a demodulation frequency for demodulation as to offset cross amplitude modulation. CONSTITUTION:A received signal inputted from terminal 1 is inputted to synchronous detector 2. This synchronous detector 2 provides detection by a sine wave from oscillator 3 of a frequency shifting from a carrier frequency by 1/2T. Thus, the demodulator can be simplified. Here, T represents one signal interval. |
