Coherence Functions Used to Define Sources of Airborne Antenna Vibration.
Abstract
Conditional coherence functions are used in a practical mechanical vibration problem to determine which of several possible inputs are the major causes of vibration of an airborne antenna. Pairwise, multiple, and multiple conditional coherence spectra are derived from flight vibration data. The vibratory inputs causing several important antenna responses are identified despite correlations between inputs. These inputs offer the highest potential for reducing the antenna vibration by isolation or decoupling. The results also provide a measure of the vibration reduction which can be achieved by eliminating these inputs.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1975
- Accession Number
- ADA021483
Entities
People
- Jerome Pearson
- Roger E. Thaller
Organizations
- Flight Dynamics Laboratory