On the Digital Re-Design of an Analogue Missile Flight Control System Using the PIM Method


  1. Dawe, R.L.
  2. Galbreath, E.R.
  3. Ng, C.M.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN);McGill Univ, Montreal QUE (CAN) Dept of Mechanical Engineering
This research examines some of the ways to design a digital control system with particular reference to the control of yaw plane dynamics of an air-to-air missile model. Specific attention is paid to comapre two methods of global digital re-design of validated analogue closed loop control system. These two methods are the multi-input multi-output (MIMO) Plant Input Mapping (PIM) method and multi-loop PIM method. The thesis will first show how a specific class of closed loop MIMO feedback systems with a single-input multi-output (SIMO) plant can be re-structured as multi-loop control systems, which includes the closed loop missile control system. Some special characteristics pertaining to SIMO systems for control system design are explored. The aforementioned two methods of PIM global digital re-design are then applied to the MIMO analogue missile control system and its re-structured multi-loop counterpart. A comparison of the two methods is made on its design procedure, implementation structure and results from computer simulation. The later is carried out by exercising a qualitative comparison of the plant input and closed loop system output signals subjected to a step input, as well as a quantitative comparison of the norms of the resulting plant input erros and closed loop system errors. TRUNCATED
Plant Input Mapping (PIM);Autopilots
Report Number
DREV-CR-2000-060 — Contractor Report; Master's Thesis
Date of publication
15 Mar 2000
Number of Pages
Hardcopy;Document Image stored on Optical Disk

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