抄録
Broadband radio interferometers have been developed to locate the sources of VHF/UHF radiation from lightning discharges in three spatial dimensions (3D) and time. The VHF broadband interferometer locates sources of radiation events at VHF band by extracting the differences of phases at various frequency components of Fourier spectra between a pair of antennas. Lightning images are derived by sensing the electromagnetic waves radiated from a lightning discharge process such as negative stepped leader. In this paper, a VHF broadband digital interferometer has been used to estimate the 3D lightning location from only one site. The site consists of three broadband antennas and a GPS receiver. As one of the observation results, a negative downward cloud-to-ground lightning flash will be presented and located using only one site.
