- Added Deficiency Unit In network TV, the commercial units added (at no charge) to an audience-guaranteed buy to make up for impression or TRP under-delivery as reported in a post-analysis
Literally, Analogue-to-Digital Units These are the raw numbers which emerge from a digitiser - the ``counts'' per pixel read out from a CCD
Analog to Digital Units; digitalized received signal of 12 bits size, characterizing the signal received for 1 pulse (pulses are transmitted ~1/30 degree in azimuth having a radial resolution of 1/12 km (in range))
Automatic Dialing Unit A device that is programmed with frequently called numbers The caller presses one to three digits and the preprogrammed number is automatically dialed into the telephone circuit
Analog-to-Digital Unit, unit defining integer values resulting from an analog to digital conversion
Analog-to-digital unit A number representing a CCD's output The relationship between the ADUs generated and the number of electrons acquired on the CCD is defined by the system gain Intensities given in ADUs provide a convenient method for comparing images and data generated by different cameras Also referred to as count and digital number