A real-time ZTD model in China using ERA5 and GNSS based on …
2024年10月24日 · Our EOF-based model is designed to produce real-time gridded ZTD data by integrating historical reanalysis data and ZTD observations from multiple GNSS stations. This …
顶延迟(zenithtotaldelay,ZTD)的时空特性进行了分析，结果表明，各测站ZTD平均值随大地高指数递减，衰 减因子与纬度近似线性关系，其时域变化呈现年周期和半年周期，周期、振幅、初 …
ZTD 对流层天顶总延迟 - CSDN文库
2025年1月15日 · 天顶对流层延迟（Zenith Tropospheric Delay, ZTD）是全球导航卫星系统（Global Navigation Satellite System, GNSS）的关键参数之一，它直接影响着GPS等卫星定位 …
Establishing a high-precision real-time ZTD model of China
2022年10月7日 · First, the zenith tropospheric delay (ZTD) is extracted in real time with high accuracy by combining the data of more than 500 GNSS stations in the Crustal Movement …
SHAtrop：基于陆态网GNSS数据的中国大陆区域ZTD模型
Temporal and spatial characteristics of the zenith tropospheric delay (ZTD) over mainland China are analyzed using the Crustal Movement Observation Network of China (CMONOC) GNSS …
(PDF) GNSS观测数据ZTD建模的质量控制方法 - ResearchGate
2020年9月15日 · 针对目前基于GNSS观测数据的对流层天顶总延迟 (ZTD)模型缺乏有效质量控制手段的现状，提出了一套综合考虑数据量、网格分辨率以及模型稳定性的ZTD建模质量控制方 …
Analysis of GNSS-ZTD retrieval using dual-frequency raw …
2024年5月31日 · In this study, four months (February, May, August and November) of continuous GNSS measurements evenly distributed over 2022 were used for GNSS-ZTD retrieval. To …
A New Global Fine-Scale Stratification Zenith Tropospheric
2024年12月28日 · Furthermore, with GNSS ZTD as a reference, the GZTDFS model shows higher accuracy and better applicability. The GZTDFS model also outperforms GPT3 by 7% …
Seasonal and Topographical Dynamics of Precipitable Water …
5 天之前 · The first is to estimate the ZTD and PWV content in Bagmati Province using ground-based GNSS observations, and the second is to analyse and quantify the variations in ZTD …
RTK from space: a novel and low-cost GNSS augmentation
2025年3月19日 · In this paper, we proposed a novel and low-cost Global Navigation Satellite System (GNSS) augmentation technique named “Real Time Kinematic (RTK) from space” for …