Time delay measurement based on analytic signal for lightning interferometer
- Resource Type
- Conference
- Authors
- Diaz, Fernando; Gomez, Carlos; Roman, Francisco
- Source
- 2021 35th International Conference on Lightning Protection (ICLP) and XVI International Symposium on Lightning Protection (SIPDA) Lightning Protection (ICLP) and XVI International Symposium on Lightning Protection (SIPDA), 2021 35th International Conference on. 1:1-4 Sep, 2021
- Subject
- Communication, Networking and Broadcast Technologies
Engineered Materials, Dielectrics and Plasmas
Engineering Profession
Fields, Waves and Electromagnetics
General Topics for Engineers
Power, Energy and Industry Applications
Transportation
Optical interferometry
Interpolation
Uncertainty
Measurement uncertainty
Estimation
Lightning protection
Transforms
lightning interferometer
crosscorrelation
real-valued signals
analytic signals
- Language
- ISSN
- 2815-0368
This paper presents a signal processing approach to reduce uncertainty related to the time difference estimation. The proposed method is a well-known approach that suits the location of source radiation coming from thundercloud by a lightning interferometer. The method uses analytic signals and the cross-correlation function to turn lag estimation from a maximum to a zero-crossing point. The latest is simpler because it is unique, so the uncertainty about its true value is lesser. Furthermore, interpolation calculations are not required to overcome the broadening of the maxima values for noisy signals.