Frequency measurement system, frequency measurement method, and frequency measurement program

摘要

PROBLEM TO BE SOLVED: To provide a frequency measuring system capable of accurately measuring the center frequency of a communication signal in a short measurement period.SOLUTION: A demodulation/modulation unit 12 demodulates and modulates an IF signal based on a communication signal received by a receiver to generate a duplicate signal. A multiplication unit 14 multiplies the IF signal by the duplicate signal to generate a multiplication signal, i.e., the signal of a differential frequency between the frequency of the signal and the frequency of the IF signal. Then, a center frequency identification unit 15 identifies the center frequency of the communication signal on the basis of the peak frequency of the multiplication signal generated by the multiplication unit 14.SELECTED DRAWING: Figure 6