WIFI RADAR COMMUNICATION CIRCUIT AND INTERFERENCE DETECTION METHOD

Original (Chinese)

A WiFi radar communication circuit includes a radio frequency front-end circuit, an analog-to-digital converter, and a digital signal processor. The radio frequency front-end circuit is coupled to a transmitting antenna and a receiving antenna for transmitting a radar frame and receiving reflected echoes. The analog-to-digital converter is configured to convert the reflected echoes into radar echo digital signals. The digital signal processor is configured to operate an interference detector. The interference detector is configured to determine whether each reflected chirp among the reflected chirps is subject to interference based on a cumulative power difference between adjacent reflected chirps. The interference detector is further configured to determine whether the radar frame is subject to interference based on a statistical result of whether the reflected chirps are subject to interference. Accordingly, interference detection results for the radar frame and the reflected chirps are generated.