Patent ID: 11942976
Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 3:
4. The signal interference detection method according to claim 1, wherein detecting whether there is an interfering signal in the input radio-frequency signal comprises:
performing the inverse Fourier transform on the demodulated signal to acquire the first signal, wherein a manner for performing the inverse Fourier transform on the demodulated signal comprises performing the inverse Fourier transform on the demodulated signal to generate a superposition of sine waves having different frequencies;
performing the phase inversion on the preset baseband signal to acquire the second signal;
convolving the first signal and the second signal to remove a useful sine wave signal, so as to acquire the detection signal;
determining whether the detection signal is interfering;
in cases where the detection signal is interfering, performing anti-interference processing on the interfering detection signal; and
in cases where the detection signal is not interfering, the input radio-frequency signal entering, via a non-interfering channel, the radio-frequency circuit for processing.