| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,764,631,840 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
nulling interferometry |
Also found in: Wikipedia | 0.02 sec. |
|
nulling interferometry [¦nəl·iŋ ‚in·tə·fə′räm·ə·trē] (optics) A technique in which light waves from a bright object such as a star are made to interfere and cancel each other in an optical system, allowing the observation of much fainter nearby objects that would otherwise be invisible in the glare of the bright object. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | |
|---|---|---|
The nuller antennas resist jamming from within their respective coverage areas by changing their gain patterns when a jamming signal is detected. The MDR antennas consist of eight narrow spot-beam antennas: six distributed user coverage antennas (DUCAs), and two narrow spot beams with nulling capabilities, known as nuller antennas. Both the nullers and the DUCAs provide 44 GHz uplinks and 20 GHz downlinks to the regions of Earth within their coverage area. |
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|