METHOD AND DEVICE FOR IN-BAND CO-FREQUENCY SELF-INTERFERENCE CANCELLATION, AND COMPUTER-READABLE STORAGE MEDIUM

摘要

Disclosed is a method for in-band co-frequency self-interference cancellation. The method comprises the following steps: performing frequency response analysis with respect to a superimposed signal and a superimposing signal to produce respectively a superimposed signal frequency-domain response and a superimposed signal frequency-domain response, where both the superimposed signal and the superimposing signal are baseband time-domain signals; identifying a frequency-domain overlap area of the superimposed signal frequency-domain response and the superimposing signal frequency-domain response; performing, on the basis of the superimposing signal frequency-domain response, predistortion processing with respect to a frequency domain of the superimposing signal located in the frequency-domain overlap area so as to generate a new superimposing signal; and, coupling and superimposing the superimposed signal with the newly generated superimposing signal to generate a new baseband signal. Also disclosed are a device for in-band co-frequency self-interference cancellation and a computer-readable storage medium. The present invention solves the problem of self-interference produced when multiple broadcast signals are co-generated and simultaneously broadcasted in a same frequency band, thus improving the transmission quality of the broadcast signals.