the branch of optics that compensates for image distortions, especially by means of flexible mirrors or membranes.
noun (functioning as sing)
a technique used to increase the resolution of a ground-based astronomical telescope by counteracting the effects of the atmosphere on the image. A deforming mirror in the light path of the telescope maintains a pointlike image of the celestial body using either a real star or a laser beam as a reference
a process which compensates for image distortions in telescopes caused by the atmosphere etc., esp. by use of flexible membranes or mirrors
In adaptive optics, a wavefront sensor uses a reference star to measure the distortions that are occurring and the distortions are then removed with a phase corrector.
- Adaptive radiation
the diversification of an ancestral group of organisms into a variety of related forms specialized to fit different environments or ways of life, each often further diversifying into more specialized types. noun evolution of a number of divergent species from a common ancestor, each species becoming adapted to occupy a different environment. This type of […]
- Adaptive routing
adaptive routing dynamic routing
- Adaptive server enterprise
adaptive server enterprise relational database management system that started life in the mid-eighties [first release?] as “Sybase SQL Server”. For a number of years Microsoft was a Sybase distributor, reselling the Sybase product for OS/2 and (later) Windows NT under the name “Microsoft SQL Server”. Around 1994, Microsoft basically bought a copy of the source […]
- Adaptive simulated annealing
adaptive simulated annealing language (ASA) An algorithm for global optimisation of generic functions by Lester Ingber [email protected] . Latest version: 20.5, as of 2000-02-29. (http://alumni.caltech.edu/~ingber/). (http://ingber.com/). Mailing list: . (2000-02-29)
- Adaptive transform acoustic coding
adaptive transform acoustic coding algorithm (ATRAC) An audio compression algorithm, introduced by Sony for its Mini Disk, which relies on the masking of low-amplitude frequency components by temporaly adjacent high-amplitude components. ATRAC consists of a three-band subband encoder (0…5.5, 5.5…11, 11…22 kHz) and a MDCT based transformation encoder. [Does Sony Minidisk use ADPCM?] (2001-12-13)