Amplitude and phase measurements help characterize nearly paraboloidal reflectors. Deviation of microwave reflector from ideal paraboloidal shape deduced from far-field amplitude and phase measurements with help of theoretical technique referred to as microwave holographic metrology. Technique enables estimation of antenna-surface figure from measurements taken at prescribed number of field points. After determining amount of surface deviation, performance of antenna then improved by properly adjusting surface panels.
Estimating Antenna Shape From Far-Field Measurements
NASA Tech Briefs ; 9 , 2
1985-10-01
Miscellaneous
No indication
English
Estimating Attitude From GPS Measurements on One Antenna
Online Contents | 1998
A Shape Error Estimating Method for Connecting the Modular Antenna Reflection
British Library Conference Proceedings | 1998
|Estimating Small-Body Gravity Field from Shape Model and Navigation Data
British Library Conference Proceedings | 2008
|Estimating Small-Body Gravity Field from Shape Model and Navigation Data
Online Contents | 2010
|