A Novel Land-Based High-Frequency Geolocation System
| Autor: | Guobin Yang, Chunhua Jiang, Yaogai Hu, Anqi Zhou, Binbin Ni, Zhengyu Zhao, Tongxin Liu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Skywave
Computer science Transmitter 0211 other engineering and technologies 02 engineering and technology Geotechnical Engineering and Engineering Geology Signal Antenna array Geolocation Transmission (telecommunications) Angle of arrival Computer Science::Networking and Internet Architecture Electrical and Electronic Engineering Ionosphere Computer Science::Information Theory 021101 geological & geomatics engineering Remote sensing |
| Zdroj: | IEEE Geoscience and Remote Sensing Letters. 18:48-52 |
| ISSN: | 1558-0571 1545-598X |
| DOI: | 10.1109/lgrs.2020.2966245 |
| Popis: | A novel land-based high-frequency (HF) geolocation system is proposed. The geolocating signals are transmitted from the stations with known geographic coordinates. Because of the ionospheric refraction, the signals propagate as skywave in the over-the-horizon (OTH) manner. Therefore, a wide spatial coverage can be achieved. The receiving station uses a small 2-D antenna array to estimate the angle of arrival (AOA) of each transmitter’s signal. An intersecting geolocation algorithm based on the geometric relations between the transmitters, and the receiver is described, which only relies on the coordinates of the transmission stations and the azimuth angles of the signals. A novel specific multichannel system structure is also described. It has a simple structure and low hardware cost, as well as good flexibility. The preliminary experimental results prove the feasibility of this geolocation method and its engineering application significance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|