Microprocessor Requirements for Implementing Modern Control Logic.
Abstract
A demonstration of the use of microprocessors for implementing linear quadratic Gaussian (LQG) control was conducted. The demonstration consisted of simulating linear system dynamics on an analog computer and implementing LQG control and estimation dynamics on a microprocessor. Two cases were studied -- a single input second order system and a four input fifth order system. The second order system was controlled using an Intel 8080 8-bit microprocessor and fifth order system was controlled using a 16-bit Digital Equipment Corp LSI 11/2 microprocessor. Key requirements addressed include microprocessor requirements for: (1) word size; (2) computational capability, including arithmetic and input/output operations; and (3) memory requirements. The requirements were compared against predicted requirements made using previously developed analytic techniques. The implementation involved developing general purpose algorithms required for implementing LQG control and estimation. These algorithms consisted of matrix/vector multiplication, vector addition and input/output service routines. The same algorithms were employed in both the second order and the fifth order demonstration.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1980
- Accession Number
- ADA085994
Entities
People
- Florence A. Farrar
- James R. Krodel
- Robert W. Guile
Organizations
- United Technologies Corporation