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Power-spectral-density relationship for retarded differential equations
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Barker, L. K. |
| Copyright Year | 1974 |
| Description | The power spectral density (PSD) relationship between input and output of a set of linear differential-difference equations of the retarded type with real constant coefficients and delays is discussed. The form of the PSD relationship is identical with that applicable to unretarded equations. Since the PSD relationship is useful if and only if the system described by the equations is stable, the stability must be determined before applying the PSD relationship. Since it is sometimes difficult to determine the stability of retarded equations, such equations are often approximated by simpler forms. It is pointed out that some common approximations can lead to erroneous conclusions regarding the stability of a system and, therefore, to the possibility of obtaining PSD results which are not valid. |
| File Size | 561156 |
| Page Count | 17 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19740026875 |
| Archival Resource Key | ark:/13960/t0ht7dc08 |
| Language | English |
| Publisher Date | 1974-10-01 |
| Access Restriction | Open |
| Subject Keyword | Retarding Input Stability Difference Equations Power Spectra Differential Equations Output Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
