Accession Number : AD0806537

Title :   THE ACQUISITION OF DATA FOR DIGITAL BEARING COMPUTATION.

Descriptive Note : Technical rept.,

Corporate Author : ILLINOIS UNIV AT URBANA RADIO RESEARCH LAB

Personal Author(s) : Ledbetter, R. J. ; Ernst, E. W.

Report Date : JAN 1967

Pagination or Media Count : 55

Abstract : This paper is concerned with the acquisition of data for digital bearing computation with a circularly disposed antenna array. The three principal bearing computers considered are: (1) the nonscanning monopulse bearing computer; (2) the center of gravity bearing computer and (3) the scanning monopulse bearing computer. The data, both digital and analog, that is available is examined so this may be compared with what may be needed for each bearing computer. It was found that all the data needed for each of the three bearing computers could be obtained with very little additional instrumentation. A method is described that allows the transmission of data to an on-line digital computer for bearing computation while an experiment is being conducted. Another method permits recording the digital data for use with an off-line digital computer. Finally, a method is presented for simultaneously transmitting the data to an on-line computer and recording the data for use with an off-line computer. The recording of data for use with the center of gravity bearing computer has been evaluated under live signal conditions. (Author)

Descriptors :   (*DIRECTION FINDING, DIGITAL COMPUTERS), ANTENNA ARRAYS, RADIO SIGNALS, DATA TRANSMISSION SYSTEMS, DATA PROCESSING, RECORDING SYSTEMS, RADIO EQUIPMENT, RADIO SCANNING, ERRORS, CENTER OF GRAVITY.

Subject Categories : Computer Hardware
      Direction Finding

Distribution Statement : APPROVED FOR PUBLIC RELEASE