Preliminary study on theory and method of ground-based GNSS-IR wind speed

With the development of Global Navigation Satellite Systems (GNSS), the multipath effect that was once regarded as one error source has been proven can be used to monitor reflecting surface parameters such as water level, snow depth, vegetation water content, and soil moisture using a technology nam...

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Autores principales:	WANG Xiaolei, HE Xiufeng, CHEN Shu, ZHANG Qin, SONG Minfeng
Formato:	article
Lenguaje:	ZH
Publicado:	Surveying and Mapping Press 2021
Materias:	gnss-ir wind speed multipath signal-to-noise ratio masking angle wavelet analysis Mathematical geography. Cartography GA1-1776
Acceso en línea:	https://doaj.org/article/13978db29c814f1aa63a6f26158d7a63
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spelling	oai:doaj.org-article:13978db29c814f1aa63a6f26158d7a632021-11-12T02:25:59ZPreliminary study on theory and method of ground-based GNSS-IR wind speed1001-159510.11947/j.AGCS.2021.20200586https://doaj.org/article/13978db29c814f1aa63a6f26158d7a632021-10-01T00:00:00Zhttp://xb.sinomaps.com/article/2021/1001-1595/2021-10-1298.htmhttps://doaj.org/toc/1001-1595With the development of Global Navigation Satellite Systems (GNSS), the multipath effect that was once regarded as one error source has been proven can be used to monitor reflecting surface parameters such as water level, snow depth, vegetation water content, and soil moisture using a technology named GNSS-interferometry reflectomety (GNSS-IR). In order to expand monitoring objects and applications of GNSS-IR, this paper proposed the theory and method to retrieve wind speed using ground-based GNSS-IR. The theory includes the signal-to-noise ratio (SNR) multipath oscillation theory, the scattering model theory, and wave spectrum theory. This paper simulated the mathematical model between the SNR cutoff elevation angle and the wind speed, and used the wavelet analysis to extract SNR cutoff elevation angle and a unified method to unify reference of cutoff elevation angle. Data of HKQT station, located in Hong Kong, during the period of "Mangkhut" and "Hato" were used. The results showed that the variations of GPS L5 SNR cutoff elevation angles had a good corresponding relationship with the measured wind speeds, and the correlation coefficient reached 70%~85%. Also, the variations of cutoff elevation angles can describe the change of wind speed from low wind speed to high wind speed and there was a specific mathematical relationship between them. Finally, this paper discussed two difficulties to overcome in the GNSS-IR wind speed retrieval technology.WANG XiaoleiHE XiufengCHEN ShuZHANG QinSONG MinfengSurveying and Mapping Pressarticlegnss-irwind speedmultipathsignal-to-noise ratiomasking anglewavelet analysisMathematical geography. CartographyGA1-1776ZHActa Geodaetica et Cartographica Sinica, Vol 50, Iss 10, Pp 1298-1307 (2021)
institution	DOAJ
collection	DOAJ
language	ZH
topic	gnss-ir wind speed multipath signal-to-noise ratio masking angle wavelet analysis Mathematical geography. Cartography GA1-1776
spellingShingle	gnss-ir wind speed multipath signal-to-noise ratio masking angle wavelet analysis Mathematical geography. Cartography GA1-1776 WANG Xiaolei HE Xiufeng CHEN Shu ZHANG Qin SONG Minfeng Preliminary study on theory and method of ground-based GNSS-IR wind speed
description	With the development of Global Navigation Satellite Systems (GNSS), the multipath effect that was once regarded as one error source has been proven can be used to monitor reflecting surface parameters such as water level, snow depth, vegetation water content, and soil moisture using a technology named GNSS-interferometry reflectomety (GNSS-IR). In order to expand monitoring objects and applications of GNSS-IR, this paper proposed the theory and method to retrieve wind speed using ground-based GNSS-IR. The theory includes the signal-to-noise ratio (SNR) multipath oscillation theory, the scattering model theory, and wave spectrum theory. This paper simulated the mathematical model between the SNR cutoff elevation angle and the wind speed, and used the wavelet analysis to extract SNR cutoff elevation angle and a unified method to unify reference of cutoff elevation angle. Data of HKQT station, located in Hong Kong, during the period of "Mangkhut" and "Hato" were used. The results showed that the variations of GPS L5 SNR cutoff elevation angles had a good corresponding relationship with the measured wind speeds, and the correlation coefficient reached 70%~85%. Also, the variations of cutoff elevation angles can describe the change of wind speed from low wind speed to high wind speed and there was a specific mathematical relationship between them. Finally, this paper discussed two difficulties to overcome in the GNSS-IR wind speed retrieval technology.
format	article
author	WANG Xiaolei HE Xiufeng CHEN Shu ZHANG Qin SONG Minfeng
author_facet	WANG Xiaolei HE Xiufeng CHEN Shu ZHANG Qin SONG Minfeng
author_sort	WANG Xiaolei
title	Preliminary study on theory and method of ground-based GNSS-IR wind speed
title_short	Preliminary study on theory and method of ground-based GNSS-IR wind speed
title_full	Preliminary study on theory and method of ground-based GNSS-IR wind speed
title_fullStr	Preliminary study on theory and method of ground-based GNSS-IR wind speed
title_full_unstemmed	Preliminary study on theory and method of ground-based GNSS-IR wind speed
title_sort	preliminary study on theory and method of ground-based gnss-ir wind speed
publisher	Surveying and Mapping Press
publishDate	2021
url	https://doaj.org/article/13978db29c814f1aa63a6f26158d7a63
work_keys_str_mv	AT wangxiaolei preliminarystudyontheoryandmethodofgroundbasedgnssirwindspeed AT hexiufeng preliminarystudyontheoryandmethodofgroundbasedgnssirwindspeed AT chenshu preliminarystudyontheoryandmethodofgroundbasedgnssirwindspeed AT zhangqin preliminarystudyontheoryandmethodofgroundbasedgnssirwindspeed AT songminfeng preliminarystudyontheoryandmethodofgroundbasedgnssirwindspeed
_version_	1718431273493463040

Preliminary study on theory and method of ground-based GNSS-IR wind speed

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