Loading...
Please wait, while we are loading the content...
Similar Documents
A microprocessor application to a strapdown laser gyro navigator
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Luxford, E. Giardina, C. |
| Copyright Year | 1980 |
| Description | The replacement of analog circuit control loops for laser gyros (path length control, cross axis temperature compensation loops, dither servo and current regulators) with digital filters residing in microcomputers is addressed. In addition to the control loops, a discussion is given on applying the microprocessor hardware to compensation for coning and skulling motion where simple algorithms are processed at high speeds to compensate component output data (digital pulses) for linear and angular vibration motions. Highlights are given on the methodology and system approaches used in replacing differential equations describing the analog system in terms of the mechanized difference equations of the microprocessor. Standard one for one frequency domain techniques are employed in replacing analog transfer functions by their transform counterparts. Direct digital design techniques are also discussed along with their associated benefits. Time and memory loading analyses are also summarized, as well as signal and microprocessor architecture. Trade offs in algorithm, mechanization, time/memory loading, accuracy, and microprocessor architecture are also given. |
| File Size | 230388 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19810003147 |
| Archival Resource Key | ark:/13960/t6k11wh4v |
| Language | English |
| Publisher Date | 1980-01-01 |
| Access Restriction | Open |
| Subject Keyword | Computer Operations And Hardware Digital Systems Difference Equations Microprocessors Laser Gyroscopes Strapdown Inertial Guidance Architecture Computers Digital Filters Navigation Instruments Transformations Mathematics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
