MOBILE BODY SENSING DEVICE

摘要

[Problem] To provide a mobile body sensing device which is capable of alleviating deterioration in sensing precision, without requiring adjustment of frequency or antenna position. [Solution] A mobile body sensing device comprises: a first radiating detection means for radiating an electromagnetic wave and detecting a standing wave which arises by the electromagnetic wave being reflected by an object; and a second radiating detection means for radiating an electromagnetic wave which passes through the vicinity of an electromagnetic wave radiating site in the first radiating detection means, wherein said electromagnetic wave has the same frequency as that of the electromagnetic wave that the first radiating detection means radiates, and detecting a standing wave which arises by the radiated electromagnetic wave being reflected by an object. The distance traveled when the electromagnetic wave that the second radiating detection means radiates reaches the vicinity of the first radiating detection means is the distance of a wavelength of a prescribed cycle shorter than a half-cycle of the electromagnetic wave that the first radiating detection means and the second radiating detection means radiate, added to an integer multiple of the wavelength of said half-cycle.