Photometrical observations of geostationary satellites on small phase angles
نویسندگان
چکیده
منابع مشابه
Range Biases on the WAAS Geostationary Satellites
Due to limited receiver bandwidth and tracking configuration differences, measurements made on a narrowband geostationary satellite signal may differ significantly from those made on GPS signals and result in relatively large range bias errors for users. Modeling and analysis of this net effect is complicated by several parameters including a wide range of allowed GEO signal correlator spacings...
متن کاملThesis Proposal Space Environment Impacts on Geostationary Communications Satellites
1. Problem Statement and Objectives 1.1. Problem Statement 1.2. Objectives 1.2.1. Research Questions 1.3. Background 1.3.1. Trends in Geostationary Communication Satellite Design 1.3.1.1. What are power amplifiers? Why are they important? 1.3.1.2. Traveling Wave Tube Amplifiers 1.3.1.3. Solid State Power Amplifiers 1.3.1.4. SSPA vs. TWTA Space Technologies 1.3.2. Space Weather Phenomena 1.3.2.1...
متن کاملOn the potential of sub-mm passive MW observations from geostationary satellites to retrieve heavy precipitation over the Mediterranean Area
The general interest in the potential use of the mm and sub-mm frequencies up to 425 GHz resolution from geostationary orbit is increasing due to the fact that the frequent time sampling and the comparable spatial resolution relative to the “classical” (≤89 GHz) microwave frequencies would allow the monitoring of precipitating intense events for the assimilation of rain in now-casting weather p...
متن کاملDetermining diurnal variations of land surface emissivity from geostationary satellites
[1] Infrared (IR) land surface emissivity (LSE) with a high temporal and spatial resolution is very important for deriving other products using IR radiance measurements as well as assimilating IR radiances in numerical weather prediction (NWP) models over land. Retrieved from various satellite instruments, many LSE databases are available for operational and research use. Most are updated only ...
متن کاملFlow Analysis of Cloud Images from Geostationary Satellites
In this paper, motion analysis of cloud images from a geostationary satellite has been examined by the method of optical flow. The original model of the optical flow is adjusted to cater for the compressible property of clouds. Also, the spiral movement equation is added to derive the movement of occluded depressions which circulate around a vortex. The analysis aims to support rainfall analysi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomical School’s Report
سال: 2013
ISSN: 2411-6602,1607-2855
DOI: 10.18372/2411-6602.09.1051