this radar module is provided with : a transmission antenna ; a reception antenna ; a signal source for generating a transmission signal ; a transmission unit for transmitting a transmission signal towards a target object through the transmission antenna ; a reception unit for receiving , through the reception antenna , a reflected signal produced by reflection of the transmission signal from the target object ; a signal processing unit for performing signal processing on the basis of a reception signal outputted by the reception unit ; and an external interface for outputting information obtained by the signal processing unit . the signal processing unit calculates an average value and a variance value of the received power of the reception signal , and uses the calculated average value and variance value to identify the target object .