Low power radar detection system

A communication device, comprising:

• a mixer configured to modulate a received communication signal based on an oscillating signal to generate an output signal;
• a filter having a first bandwidth and configured to filter the output signal;
• a scanning and spreading circuit configured to:
• control the oscillating signal to scan an operating channel having a second bandwidth that is greater than the first bandwidth;
• and
• perform a spread-spectrum processing on the received communication signal to spread the received communication signal in a frequency domain;
• and
• a radar signal detector configured to detect a radar signal pulse in the received communication signal based on the scanning of the operating channel.

A communication device adapted to communicate via a communication protocol, comprising:

• a controller configured to control the communication device to disable communication via the communication protocol based on a radar detection signal;
• and
• a transceiver configured to communicate via the communication protocol, detect a radar signal pulse within a received communication signal, and generate the radar detection signal based on the detection of the radar signal pulse, wherein the transceiver includes:
• a filter having a first bandwidth and configured to filter the received communication signal to generate a filtered signal;
• a scanning and spreading circuit configured to:
• scan an operating channel having a second bandwidth that is greater than the first bandwidth;
• and
• spread the received communication signal in a frequency domain;
• and
• a radar signal detector configured to detect the radar signal pulse within the filtered signal based on the scanning of the operating channel and to generate the radar detection signal based on the detection of the radar signal pulse.