Haystack Antenna Control System Design Document
MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
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MIT Lincoln Laboratory is carrying out a program to upgrade the existing Haystack radar by adding a W-band 96 GHz radar capability. The existing X-band radar 10 GHz will remain intact and the resulting radar will be capable of either simultaneous dual-band or single-band operation. This document describes the performance requirements of the control system for the HUSIR antenna. A new higher precision antenna is being installed, allowing the antenna to be used efficiently at W-Band. At W-Band, the system will have a very narrow beam that needs to be accurately pointed by a new control system while operating at higher velocities than the old hydraulic system. This document describes the design of the control system as it is to be implemented, but this document alone isnt enough to completely define the control system design. A large number of drawings go along with this document and will be referenced throughout this document, as well as several Interface Control Documents ICDs. These ICDs will define the data that is transferred between the radar or astronomy computer and the antenna control unit ACU, between the ACU and the maintenance computers, and between the ACU and the Programmable Logic Controller PLC system. The ICDs will be referenced, where appropriate.
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