This paper analyzes the application differences of nulling antenna technology between GEO and LEO satellites; a lot of comparison is given. Finally, the application differences are concluded and summarized.Zhao Xing-weiLv YuanLiu Hui-jieLiang Xu-wen...
We propose an algorithm for predicting double difference (DD) observations of obstructed BeiDou navigation system (BDS) GEO satellites. Our approach adopts the first-degree polynomial function for predicting missing observations. We introduce a Douglas-Peucker algorithm to judge the state of the rover ...
The algorithm incorporates carrier phase ambiguity resolution technique- LAMBDA (Least squares Ambiguity De-correlation Adjustment method), to determine the relative position between two satellites. This is a unique method to correctly estimate the value of integer ambiguities in the double difference ...
Due to the fast movement of LEO satellites, 𝑇tof1, 𝑇tof2, and 𝑇tof3 are not equal, which leads to the satellite motion error. The time difference measurement error caused by satellite motion in Equation (5) can be expressed as: 𝑀Δ𝑇=(𝑇tof2−𝑇tofAB)⋅𝐾A−14...
(3) evaluate the performance of the produced 10-m MNDWI in water bodies mapping by comparing it to the 10-m NDWI and the 20-m MNDWI; and (4) explore the relationship between the accuracy of the sharpened SWIR band or the sharpened MNDWI image and the map-level accuracy of the ...
Satellite-based precipitation products utilize the information provided by visible-infrared (VIS-IR) channels from geostationary (GEO) satellites, passive microwave (PMW) sensors, and spaceborne radars from low orbiting (LEO) satellites. Just like weather radar QPE, satellite rainfall retrieval is also...
The single-difference (SD) can eliminate both the satellites and receiver clock errors with the common clock between antennas, which benefits the GNSS short-baseline attitude determination due to its lower noise, higher redundancy and stronger function model strength. However, the existence of ...
The terrain is high in the southwest and low in the northeast, and the average altitude is <10 m. The average annual temperature in this area is between 11.7 and 12.6 °C. The average sunshine hours are between 2590 and 2830 h, and the annual precipitation is between 530 and 630 mm. ...
Rainfall-induced floods often cause significant loss of life as well as damage to infrastructure and crops. Synthetic Aperture Radar (SAR) Earth Observation Satellites (EOS) can be used to determine the extent of flooding over large geographical areas. U
and Machine LearningAdvances in Quantitative Remote Sensing in China – In Memory of Prof. Xiaowen LiAdvances in Real Aperture and Synthetic Aperture Ground-Based InterferometryAdvances in Remote Sensing and Geographic Information Science and Their Uses in GeointelligenceAdvances in Remote Sensing and ...