Microwave detection system and method

The transmitting machine constituted so that a microwave detection system might transmit a signal in accordance with a course and the intruding object to a monitor zone might be detected, The abnormal-conditions antenna reflector which was constituted so that the abnormal-conditions signal which is an abnormal-conditions antenna reflector and has the characteristic which receives the transmitted signal and is introduced with an abnormal-conditions antenna reflector might be generated, and was constituted so that an abnormal-conditions signal might be transmitted is included. This system contains the receiver arranged again in order to receive an abnormal-conditions signal, and the adaptive threshold regulation unit constituted so that a variable detection threshold might be provided according to system gain change. This system contains the processor which was constituted so that the abnormal-conditions signal provided by a receiver might be processed further, and was constituted so that the characteristic in the abnormal-conditions signal processed to the variable detection threshold provided by the adaptive threshold regulation unit might be measured. [Chosen drawing] Drawing 3