| Title |
A Study on the Lightning Discharge Positioning |
| Authors |
Gyung-Suk KilGyung-Suk Kil ; Dae-Won Park ; Il-Kwon Ki ; Su-Yeon Choi ; Chang-Hwan Ahn ; Young-Keun Lee |
| Keywords |
Lightning warning system ; Lightning retum stroke ; Lightning positioning ; Thunderdouds ; Electric field ; Magnetic field |
| Abstract |
Lightning warning system plays an important role in protecting human life and other facilities from lightning return strokes. This paper dealt with lightning positioning algorithms and circuits as a main function of lightning warning system, which monitor movements and activities of thunderclouds. Electric field component produced by lightning discharge is detected by the configuration of a whip antenna and a narrow-band resonance amplifier with center frequency of 3OO[㎑]. Measurement circuit of magnetic field waveform consists of a crossed-loop coil and an integral amplifier, and its frequency bandwidth is ranges from 5[㎑] to 1.2[㎒]. The polarity of lightning discharge is discriminated by electric field component After fixing the polarity, we can calculate the direction and distance of lightning discharge by the peak and the zero-cross time of magnetic field waveform. |