Radar detector and interference suppression method using radar detector

A radar detector, comprising:

• a radar transmitting device configured to transmit a first wireless signal;
• a radar receiving device, coupled to the radar transmitting device, and configured to receive a second wireless signal to generate an analog reference signal in response to the first wireless signal is subdued from being transmitted, and receive a third wireless signal to generate an analog main signal in response to the first wireless signal is not subdued from being transmitted, wherein the second wireless signal and the third wireless signal comprise interference components corresponding to interference;
• an analog-to-digital converter of which an input end is coupled to the radar receiving device to generate a digital reference signal according to the analog reference signal, and generate a digital main signal according to the analog main signal;
• and
• a digital processing unit configured to generate an interference parameter according to the digital reference signal, and configured to adjust the digital main signal or the analog main signal according to the interference parameter, to correspondingly suppress the interference components in the digital main signal or suppress the interference components in the analog main signal.