An electronic device comprising: a transmission antenna configured to transmit transmission waves; a reception antenna configured to receive reflected waves resulting from reflection of the transmission waves; and a controller configured to detect an object reflecting the transmission waves, based on a transmission signal transmitted as the transmission waves and a reception signal received as the reflected waves, wherein the controller is configured to classify a detection result of the object reflecting the transmission waves depending on a degree of certainty, and output the classified detection result, characterised in that the controller is configured to classify the detection result as a detection result that the object reflecting the transmission waves is detected but an incidence angle when receiving the reflected waves is unable to be determined, in the case where an intensity of the reflected waves resulting from the reflection of the transmission waves off the object is greater than or equal to a predetermined value and the incidence angle is possibly wrongly estimated, wherein the controller is configured to determine whether the incidence angle when receiving the reflected waves is possibly wrongly estimated, by estimating the incidence angle when receiving the reflected waves, wherein the controller is configured to determine that the incidence angle when receiving the reflected waves is possibly wrongly estimated, in the case where the incidence angle when receiving the reflected waves is estimated to be greater than or equal to a predetermined angle, and wherein the controller is configured to correct a frequency of the transmission waves to be less than or equal to a predetermined frequency in a predetermined frequency band in the case where the controller determines that the incidence angle when receiving the reflected waves is possibly wrongly estimated. a transmission antenna configured to transmit transmission waves; a reception antenna configured to receive reflected waves resulting from reflection of the transmission waves; and a controller configured to detect an object reflecting the transmission waves, based on a transmission signal transmitted as the transmission waves and a reception signal received as the reflected waves, wherein the controller is configured to classify a detection result of the object reflecting the transmission waves depending on a degree of certainty, and output the classified detection result, characterised in that the controller is configured to classify the detection result as a detection result that the object reflecting the transmission waves is detected but an incidence angle when receiving the reflected waves is unable to be determined, in the case where an intensity of the reflected waves resulting from the reflection of the transmission waves off the object is greater than or equal to a predetermined value and the incidence angle is possibly wrongly estimated, wherein the controller is configured to determine whether the incidence angle when receiving the reflected waves is possibly wrongly estimated, by estimating the incidence angle when receiving the reflected waves, wherein the controller is configured to determine that the incidence angle when receiving the reflected waves is possibly wrongly estimated, in the case where the incidence angle when receiving the reflected waves is estimated to be greater than or equal to a predetermined angle, and wherein the controller is configured to correct a frequency of the transmission waves to be less than or equal to a predetermined frequency in a predetermined frequency band in the case where the controller determines that the incidence angle when receiving the reflected waves is possibly wrongly estimated.