METHODS AND TECHNIQUES STUDY REPORT, THREE-OSCILLATOR COMBINER.
Abstract
The function of an oscillator combiner is to provide a frequency source of great reliability. The reliability is high because from a combiner several outputs can be obtained without interruption, even if one or more of the inputs fail. Another important requirement performed by a combiner is continuous monitoring of the frequency drift of each input signal with respect to the other inputs. Using this information a faulty input can be automatically prevented from making any contribution to the output signals. While performing these useful functions the combiner must be designed in such a manner so as not to degrade the qualities of its input signals. Specifically this means that it should not cause a change in the phase of its outputs without a similar change occurring in the inputs. For present requirements it must maintain this one to one correlation with a degradation of less than one microsecond. It is quite conceivable however that by 1970 this requirement may be an order of magnitude greater. For this reason a combiner chosen to meet the present requirements should not have an inherent phase shift limitation, its phase degradation should only be a function of component qualities. Combiners capable of providing these functions and meeting the specific requirements of SHIPS-0-4677 were studied. The advantages and disadvantages of each are listed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1965
- Accession Number
- AD0617144
Entities
Organizations
- ITT Corporation