Abstract
This paper gives an overview of fault diagnosis and control reconfiguration for complex systems such as those required in the aerospace industry. The presentation starts with a brief review of fault accommodation followed by four specific examples, viewed from the perspective of a control engineer. These examples are: 1) real-time fault diagnosis; 2) fault accommodation and control reconfiguration for an autonomous unmanned underwater vehicle; 3) fault detection, isolation, and reconfiguration for aircraft control surfaces; and 4) fault diagnosis relating to autonomous control of a spacecraft.