Transient response analysis method of shielded cable based on minimum phase method

Xu Qinglin; Zhang Jie; Liu Pingan; Yuan Jun

doi:10.11884/HPLPB202133.210177

Volume 33 Issue 12

Dec. 2021

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Xu Qinglin, Zhang Jie, Liu Pingan, et al. Transient response analysis method of shielded cable based on minimum phase method[J]. High Power Laser and Particle Beams, 2021, 33: 123004. doi: 10.11884/HPLPB202133.210177

Citation:

Xu Qinglin, Zhang Jie, Liu Pingan, et al. Transient response analysis method of shielded cable based on minimum phase method[J]. High Power Laser and Particle Beams, 2021, 33: 123004. doi: 10.11884/HPLPB202133.210177

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Transient response analysis method of shielded cable based on minimum phase method

doi: 10.11884/HPLPB202133.210177

Xi’an Modern Control Technology Research Institute, Xi’an 710065, China

Received Date: 2021-05-11
Rev Recd Date: 2021-09-18

Available Online: 2021-10-16

Publish Date: 2021-12-15

Abstract

Abstract

To analyze the transient electromagnetic response of shielded cables in time domain when they are subjected to electromagnetic pulse, a frequency domain equivalent method based on minimum phase method is studied in this paper. First, by establishing the circuit model of the transfer impedance testing system, the transfer function of the system in frequency domain is derived, and it is verified as the cascade of a minimum phase system and an all-pass system. Secondly, the minimum phase of the measured amplitude-frequency curve is reconstructed by using the minimum phase method, then the phase of the reconstructed transfer function is compensated according to the distribution of zeros and poles. Finally, the time domain response of the shielded cable is obtained after multiplying the compensated transfer function with the transient interference signal in frequency domain and transforming into time domain. The effectiveness of the proposed method is verified by simulation and experiment.
- transfer impedance,
- shielding effectiveness,
- transfer function,
- phase reconstruction,
- transient response

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References(18)

References

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