Quaternion Based Optimal Controller for Momentum Biased Nadir Pointing Satellitedoi:10.1109/AERO47225.2020.9172570In this paper, a quaternion based linear quadratic controller (LQR) is designed for nadir pointing satellites. The stability of the proposed controller is proved for specified control input. ...
Provide the primary constraint as either a pointing mode: Point at nadir Point at celestial body Point at LatLonAlt or via a custom constraint vector. The block then aligns secondary alignment and constraint vectors as much as possible without breaking primary alignment. The library contains three...
Define nadir point. nadir point synonyms, nadir point pronunciation, nadir point translation, English dictionary definition of nadir point. See: nadir. Dictionary of Military and Associated Terms. US Department of Defense 2005
Evaluation of the Effect of the Orbit Boost of the TRMM Satellite on the PR Rain Estimates The rainfall amount estimated by PR shows a decrease after the satellite altitude was changed from 350 to 402.5 km in August 2001 to extend its lifetime. T... Shimizu,Iguchi,Hirose,... 被引量: ...
We study the effects of rotations on a cold atom accelerometer onboard a Nadir pointing satellite. A simulation of the satellite attitude combined with a calculation of the phase of the cold atom interferometer allow us to evaluate the noise and bias induced by rotations. In particular, we ...
(2008). Modeling the Potential Swath Coverage of Nadir and Off-Nadir Pointing Remote Sensing Satellite-Sensor Systems, Cartography and Geographical Information Science 35(3): 147–156.Hodgson, M., Bandana K., 2008a. Modeling the potential swath coverage of nadir and off-nadir pointable remote ...
M. Reyhanoglu, C. Ton, and S. Drakunov, "Attitude stabilization of a nadir-pointing small satellite using only magnetic actuators," Proceedings of IFAC International Conference on Intelligent Control Systems and Signal Processing, 2009, pp.1-6....
Optimal Near Sun Synchronous Orbital Design of a Nadir-Pointing Cubic Satellite with the Purpose of Thermal Load ControlOrbital parameter assessment as an integral part of a mission design has a parental effect on other subsystems of a satellite. The design and performance requirements of subsystems...
Off-nadir pointingFootprint diameterCanopy heightDESDynIICESat-IIDesign of satellite lidar systems must examine trade-offs in spatial sampling. We simulated the effects of spatial resolution and off-nadir pointing. Optimal performance was obtained with spatial resolutions of 25–30 m. Performance was...
Currently approaching its sixth year in space, the CALIPSO satellite collects lidar linear depolarization ratios delta from 0.532 mu m laser backscatter, an indicator of particle phase, shape, and orientation. We examine one-year delta averages for day and night periods when the lidar was pointing...