Ku-Band Interferometry.
Abstract
The construction of a Ku-band radio interferometer and some preliminary observations are reported. The interferometer was built for the purpose of mapping some discrete radio sources: the Crab Nebula, Cas A, and Cyg A. The system contains two 8 ft parabolic antennas and receives radiation at 17.128 GHz (1.75 cm). The maximum baseline length of 100 m corresponds to a resolution of 35 seconds of arc. A PDP-8 computer is incorporated in the system and used for pointing, tracking, delay compensation, and real-time data analysis. The phase stability of the system was found to be better than 10 degrees over a period of 2 hours. Consistent fringe components were obtained from the Crab Nebula with the baseline set at 8 m. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1970
- Accession Number
- AD0721574
Entities
People
- George D. Papadopoulos
Organizations
- Massachusetts Institute of Technology