Cable impedance spectrum generation method based on amplitude-angle transformation

Due to the special operating environment of the cable, it is very easy to be affected by external factors in the operation process, the formation of local defects, affecting the safe operation of the power system, so the accurate detection of cable defects in the area of the maintenance of the power system security and stability is of great significance. The first step to achieve cable detection is to obtain the broadband impedance spectrum of the first end of the cable, in order to overcome the current acquisition of the impedance spectrum of the equipment is expensive and not easy to carry and so on, this paper proposes a method based on the amplitude-angle transform to generate the impedance spectrum, improve the performance of the anti-noise and reduce the cost of the instrument.