Location type leaks cable intrusion detection device

The utility model relates to a burglar alarm product field discloses a location type leaks cable intrusion detection device. The intrusion detection device leaks the cable including the transmission and leaks the cable with receiving, includes still that the M sequence produces module, carrier frequency generator, signal modulator, radio frequency amplifier, low -noise amplifier, signal demodulation ware, a plurality of correlator and a detection module. The high frequency code of M sequence and the measuring of decoding not only can be realized to the intrusion detection device, obtain transmission leakage cable and have detected initial point to the transmission delay who invades the target location to can accurate discernment the invasion position of invasion target, can also be convenient for realize that the segmentation of taking precautions against the section detects, and can adjust each sectionalised detectivity according to particular case, reduce the false alarm rate, avoid appearing the phenomenon