Publisher's Synopsis
An introduction to digital measurement processes on aircraft is provided. Flight test instrumentation systems are rapidly evolving from analog-intensive to digital intensive systems, including the use of onboard digital computers. The topics include measurements that are digital in origin, as well as sampling, encoding, transmitting, and storing data. Particular emphasis is placed on modern avionic data bus architectures and what to be aware of when extracting data from them. Examples of data extraction techniques are given. Tradeoffs between digital logic families, trends in digital development, and design testing techniques are discussed. An introduction to digital filtering is also covered. Bever, Glenn A. Ames Research Center NASA-TM-101739, H-1695, NAS 1.15:101739, AGARDOGRAPH-160 RTOP 533-02-51 AIRBORNE/SPACEBORNE COMPUTERS; DATA SAMPLING; DATA STORAGE; DATA TRANSMISSION; DIGITAL COMPUTERS; DIGITAL TECHNIQUES; FLIGHT TEST INSTRUMENTS; SIGNAL PROCESSING; AVIONICS; CHANNELS (DATA TRANSMISSION); CODING; DATA ACQUISITION; DIGITAL DATA; DIGITAL FILTERS; DIGITAL SYSTEMS
