CN Tower Lightning Current Derivative Heidler Model Analysis and Transmission

摘要

The lightning current data collected at the CN Tower can be used for calibrating the Lightning Detection Network (LDN) systems. They can also be used in the modification of existing models and the creation of new ones used for the conversion of the lightning current to electromagnetic and electric propagated fields. The measured lightning current derivative signals at the CN tower are noise-laden. They are first denoised. Then, related Heidler models that can be representative for the measured lightning currents discharged through the Tower are generated. The calculated models parameters are provided to the LDN systems to be used in the calibration of the systems. Due to the complexity of the lightning discharge process, Heidler models can't be representative for all the lightning currents waveform. This paper will discuss Heidler model representation of the lightning current measured at the CN Tower and the related problems.