FREE OSCILLATIONS OF SPACECRAFT UMBRELLA-TYPE ANTENNA
نویسندگان
چکیده
منابع مشابه
Review of Large Spacecraft Deployable Membrane Antenna Structures
The demand for large antennas in future space missions has increasingly stimulated the development of deployable membrane antenna structures owing to their light weight and small stowage volume. However, there is little literature providing a comprehensive review and comparison of different membrane antenna structures. Space-borne membrane antenna structures are mainly classified as either para...
متن کاملAntenna Scanning B ehniques for Estimation of Spacecraft Position
Scanning movements are added to a tracking antenna's trajectory to estimate the true spacecraft position. T h e scanning movements are composed of the harmonic axial movements of an antenna. This motion produces power variations of t he received signal, which are used to estimate the spacecraft's position. Three different scanning patterns (conical scan, Lissajous scan, and rosette s can ) are ...
متن کاملAutomated Exploration of Free Energy Landscapes Based on Umbrella Integration.
We present a new approach for automated exploration of free energy landscapes on the basis of the umbrella integration (UI) method. The method to search points in the landscape relies on the normal distributions and gradients of the potential of mean force (PMF) obtained from UI calculations. We applied this approach to the alanine dipeptide in solution and demonstrated that the equilibrium and...
متن کاملComparing Antenna Conical Scan Algorithms for Spacecraft Position Estimation
I NTHISNote,wewill examine nonlinear estimation techniques to solve nonlinear problems that have been traditionally solved by linear methods. In the area of nonlinear estimation, a class of sampling algorithms known asMarkov chainMonte Carlo (MCMC) was extensively used to obtain a solution that is often a general, nonGaussian, nonunimodal probability distribution. Therefore, there is a natural ...
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: Radio industry
سال: 2016
ISSN: 2541-870X,2413-9599
DOI: 10.21778/2413-9599-2016-4-66-69