Narrow-band interference detector, signal receiver employing narrow-band interference detector and controlling demodulator parameter setting according to narrow-band interference detection result, and related methods therefor

摘要

A signal receiver (100) includes a demodulator (104), a narrow-band interference detector (108, 400), and a control module (110), where the demodulator (104) is for performing signal demodulation upon a received communication signal, the narrow-band interference detector (108, 400) is for performing narrow-band interference detection and accordingly generating a detection result, and the control module (110) is for controlling an operation of the demodulator (104) according to the detection result. In addition, a narrow-band interference detector (400) includes an input port (402) and a processing circuit (404), where the input port (402) is coupled to an equalizer (112) included in the signal receiver (100) for receiving a signal generated from the equalizer (112), and the processing circuit (404) is coupled to the input port (402) for performing a narrow-band interference detection according to the signal generated from the equalizer (112), and accordingly generating a detection result.