Alarm system for intrusion detection of an object moving in the proximity of an object to be protected

摘要

1.Alarm system, it is used to determine that the environment of intrusion into the mesh of a mobiles to be protected, it is used to detect the electromagnetic energy from the reflection of the purpose of intrusion with a transmitter be used to radiate pulse electromagnetic wave signal and a receiver, with first is that large delay passes through range gate generator about the analysis of exomonental range gate generator and moving target signal, be used to form a radial limits alarm around be protected in shell mode object desired distance bracket in subregion its be divided into area, therefore it is small that the depth of warning area is compared at a distance from warning area, it is characterized in that determining that the radial path of the person's of the being broken into covering within warning area for the difference for carrying out the numerical value of the additional positive and negative Doppler period of moving target of self-reflection shows (dE).