R
Richard S. Pappa
Researcher at Langley Research Center
Publications - 82
Citations - 4119
Richard S. Pappa is an academic researcher from Langley Research Center. The author has contributed to research in topics: Eigensystem realization algorithm & Photogrammetry. The author has an hindex of 22, co-authored 81 publications receiving 3801 citations. Previous affiliations of Richard S. Pappa include Pennsylvania State University.
Papers
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Journal ArticleDOI
An eigensystem realization algorithm for modal parameter identification and model reduction
Jer-Nan Juang,Richard S. Pappa +1 more
TL;DR: A new approach is introduced in conjunction with the singular value decomposition technique to derive the basic formulation of minimum order realization which is an extended version of the Ho-Kalman algorithm.
Journal ArticleDOI
Effects of Noise on Modal Parameters Identified by the Eigensystem Realization Algorithm
Jer-Nan Juang,Richard S. Pappa +1 more
TL;DR: The basic concept of the Eigensystem Realization Algorithm for modal parameter identification and model reduction is extended to minimize the distortion of the identified parameters caused by noise.
Proceedings ArticleDOI
A consistent-mode indicator for the eigensystem realization algorithm
TL;DR: The new method is the culmination of many years of experience in developing a practical implementation of the Eigensystem Realization Algorithm and illustrated using data from NASA Langley's Controls-Structures-Interaction Evolutionary Model.
Journal ArticleDOI
Consistent-mode indicator for the eigensystem realization algorithm
Dot-Projection Photogrammetry and Videogrammetry of Gossamer Space Structures
Richard S. Pappa,Jonathan Black,Joseph R. Blandino,Thomas W. Jones,Paul M. Danehy,Adrian A. Dorrington +5 more
TL;DR: In this article, the technique of using hundreds or thousands of projected dots of light as targets for photogrammetry and videogrammetry of gossamer space structures is documented and compared with traditional laser vibrometry for membrane vibration measurements.