Cancellation Pulses to Suppress Lightly Damped Systems.
Abstract
Servomechanisms with lightly damped resonant elements are difficult to stabilize, using the continuous-error signal of conventional theory. The use of sampled data error signals simplifies this problem, when the 'posicast' method of driving the system is applied. The posicast method is one in which the drive force is applied in two increments; the second force cancels the oscillations generated by the first force, which results in a constant output free of any oscillations. This paper proves that the application of drive forces according to the posicast method, in a general nth order lightly damped system, will result in a constant output free of any oscillations. The number of increments of force required to produce such performance may be as great as 2 to the nth power. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1967
- Accession Number
- AD0916618
Entities
Organizations
- Naval Air Weapons Station China Lake