Fine Three‐Dimensional VHF Lightning Mapping Using Waveform Cross‐Correlation TOA Method

Liu, Bo; Shi, Lihua; Qiu, Shi; Liu, Hengyi; Dong, Wei; Li, Yun; Sun, Zheng

doi:10.1029/2019ea000832

Cited by 12 publications

(8 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the past two years, the system has been redeployed to the Jiangsu Province, and is now operated by the lightning team of PLA Army Engineering University. Based on the current precision positioning method for low-frequency total lightning, Liu et al (2020) [58] significantly improved the precision positioning ability by postprocessing the original waveform. However, this postprocessing positioning method cannot meet the needs of real-time precision positioning.…”

Section: Vhf Lightning Location Technology With Long Baselinesmentioning

confidence: 99%

Advances in Lightning Monitoring and Location Technology Research in China

Zhang

Zou

et al. 2022

Remote Sensing

View full text Add to dashboard Cite

Monitoring lightning and its location is important for understanding thunderstorm activity and revealing lightning discharge mechanisms. This is often realized based on very low-frequency/low-frequency (VLF/LF) signals, very high-frequency (VHF) signals, and optical radiation signals generated during the lightning discharge process. The development of lightning monitoring and location technology worldwide has largely evolved from a single station to multiple stations, from the return strokes (RSs) of cloud-to-ground (CG) lightning flashes to total lightning flashes, from total lightning flashes to lightning discharge channels, and from ground-based lightning observations to satellite-based lightning observations, all of which have aided our understanding of atmospheric electricity. Lightning monitoring and positioning technology in China has kept up with international advances. In terms of lightning monitoring based on VLF/LF signals, single-station positioning technology has been developed, and a nationwide CG lightning detection network has been built since the end of the twentieth century. Research on total lightning flash positioning technology began at the beginning of the 21st century, and precision total lightning flash positioning technology has improved significantly over the last 10 years. In terms of positioning technology based on VHF signals, narrowband interferometers and wideband interferometers have been developed, and long-baseline radiation source positioning technology and continuous interferometers have been developed over the last ten years, significantly improving the channel characterization ability of lightning locations. In terms of lightning monitoring based on optical signals, China has for the first time developed lightning mapping imagers loaded by geosynchronous satellites, providing an important means for large-scale and all-weather lightning monitoring.

show abstract

Section: Vhf Lightning Location Technology With Long Baselinesmentioning

confidence: 99%

Advances in Lightning Monitoring and Location Technology Research in China

Zhang

Zou

et al. 2022

Remote Sensing

View full text Add to dashboard Cite

show abstract

“…The peak time of the signal can be used as the signal's arrival time. Liu et al [15] performed a Hilbert transform before cross-correlation, and converted the original VHF waveform to a Hilbert envelope to obtain the signal arrival time.…”

Section: Time Of Arrivalmentioning

confidence: 99%

Asia-Pacific Lightning Location Network (APLLN) and Preliminary Performance Assessment

Wang

Zhou

et al. 2020

Remote Sensing

View full text Add to dashboard Cite

The Asia-Pacific Lightning Location Network (APLLN) is a lightning location system consisting of a series of very low-frequency signal detection sites. Since 2018, 16 detection sites have been deployed with an average baseline longer than 1000 km. The detection site used a trigger sampling method to record the lightning signal with a duration of 2 ms and calculates the lightning arrival time based on digital filtering and the Hilbert envelope method. APLLN used a time difference location algorithm and improved Levenberg–Marquardt non-linear least squares iterative algorithm to calculate and optimize the lightning location results. The analysis results of a strong thunderstorm process show that the average detection efficiency of APLLN was 55.34% for intracloud (IC) strokes, 63.55% for cloud-to-ground (CG) strokes and 61.83% for all strokes (IC + CG). The average location error of APLLN for this thunderstorm is 5–10 km.

show abstract

“…Liu et al [49] conducted a study in the northern region of Jiangsu Province, China, by using the TOA technique. The authors proposed a 3D VHF lightning mapping system that uses a waveform cross-correlation technique.…”

Section: Refmentioning

confidence: 99%

Lightning Mapping: Techniques, Challenges, and Opportunities

et al. 2020

View full text Add to dashboard Cite

Despite the significant progress in the understanding of the phenomenon of lightning and the physics behind it, locating and mapping its occurrence remain a challenge. Such localization and mapping of very high frequency (VHF) lightning radiation sources provide a foundation for the subsequent research on predicting lightning, saving lives, and protecting valuable assets. A major technical challenge in attempting to map the sources of lightning is mapping accuracy. The three common electromagnetic radio frequencybased lightning locating techniques are magnetic direction finder, time of arrival, and interferometer (ITF). Understanding these approaches requires critically reviewing previous attempts. The performance and reliability of each method are evaluated on the basis of the mapping accuracy obtained from lightning data from different sources. In this work, we review various methods for lightning mapping. We study the approaches, describe their techniques, analyze their merits and demerits, classify them, and derive few opportunities for further research. We find that the ITF system is the most effective method and that its performance may be improved further. One approach is to improve how lightning signals are preprocessed and how noise is filtered. Signal processing can also be utilized to improve mapping accuracy by introducing methods such as wavelet transform in place of conventional cross-correlation approaches. INDEX TERMS interferometer, lightning mapping, magnetic direction finder, time of arrival.

show abstract

Fine Three‐Dimensional VHF Lightning Mapping Using Waveform Cross‐Correlation TOA Method

Cited by 12 publications

References 23 publications

Advances in Lightning Monitoring and Location Technology Research in China

Advances in Lightning Monitoring and Location Technology Research in China

Asia-Pacific Lightning Location Network (APLLN) and Preliminary Performance Assessment

Lightning Mapping: Techniques, Challenges, and Opportunities

Contact Info

Product

Resources

About