Accession Number : AD0688914

Title :   ANTENNA CONTROLLER-PROCESSOR SYSTEM.

Descriptive Note : Final rept. Oct 67-Feb 69,

Corporate Author : LOGICON INC SAN PEDRO CALIF

Personal Author(s) : Hessenflow,Charles A.

Report Date : JAN 1969

Pagination or Media Count : 131

Abstract : The AC-PS is a new control system, providing real time, precision pointing capability for the AFCRL 29 foot millimeter wave radio antenna at Prospect Hill, Waltham, Massachusetts. It has achieved enhanced accuracy, flexibility, and ease of use heretofore unavailable. Computations are performed to point the antenna to a desired object, using as inputs the ephemerides of that object and environmental data. New positioning information is generated on a real time basis, consisting of 18 bit azimuth and elevation commands each 40 milliseconds. The control hardware utilizes an IBM 1800 Data Acquisition and Control System plus special interface and test equipment. Functional integration included a complete programming package to provide operator/system interface, communication with IBM software, tracking mode control, and calculations to provide the position commands in real time. The AC-PS has been operational since August 1968. (Author)

Descriptors :   (*RADIO TELESCOPES, STEERING), (*PARABOLIC ANTENNAS, STEERING), CONTROL SYSTEMS, COMPUTER PROGRAMMING, INPUT OUTPUT DEVICES, REAL TIME, MILLIMETER WAVES, RADAR ANTENNAS, MASSACHUSETTS, TRACKING, SCANNING, SERVOMECHANISMS, DETECTORS, AUTOMATION

Subject Categories : Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE