Abbreviations/Acronyms

absolute (kelvin degrees), absorption, acoustic, alpha particle, analog, anode, ampere, amplitude, area, atomic, atomic mass, Helmholtz free energy, mass number, nucleon number

atto-

angstrom

acousto-optic

analog-to-digital

attoampere

analog to analog, anti-aliasing (AA optical filter e.g. low pass filter), approximate absolute temperature, atomic absorption

American Association for the Advancement of Science

Analog Adaptive Resonance Theory

American Astronomical Society

The ABg model or Harvey-Shack is a method of describing bidirectional scattering from isotropic or polished surfaces.

absorbance; acrylonitrile butadiene styrene

absolute value

alternating current

automatic current control

software package Atmospheric Correction Now

acquisition control processor

active-cavity radiometer

American Chemical Society

AC thin film electroluminescent display devices

advanced communication technology satellite

analog-to-digital converter; allyl diglycol carbonate

adaptive delta modulation; add-drop multiplexer

ammonium dihydrogen phosphate, adaptive Doppler processing

adaptive differential pulse code modulation; varies the binary step interval for the required bandwidth for a given signal-to-noise ratio.

angular displacement sensor

asymmetric digital subscriber line

automatic data transmission; anthradithiophene

accessible emission limit

aeronautics

Auger electron spectroscopy; atomic emission spectrometry

audio frequency; autofocusing

automatic frequency control

Armed Forces Communications and Electronics Association

atomic force microscope

Air Force Office of Scientific Research

atomic fluorescence spectroscopy

automatic gain control

aerospace ground equipment

Advisory Group on Electron Tubes

axial gradient index

automated guided vehicle

antihalation

ampere-hour

attitude heading and reference system

artificial intelligence

Automated Imaging Association

American Institute of Aeronautics and Astronautics

American Institute of Chemical Engineers

airborne intelligent display; area imaging device