Development and Flight Testing of a Parameter Identification Algorithm for Reconfigurable Control

The results are discussed of a series of e ight tests in which a computationally efe cient real-time parameter identie cation and control recone guration algorithm was evaluated. A modie ed sequential least-squares technique was used for identie cation. Signie cant challenges were encountered because of the poor information content of the signals used for identie cation and because of requirements for autonomy, reliability, and fast adaptation. A requirement for real-time operation in e ight-control computers with limited computational throughput imposed additional constraintson the recone gurable controllerand the parameterestimation algorithm. The identie cation algorithm is presented with solutions that were developed to address problems posed by the specie c application. Typical parameter identie cation results from the e ight tests are shown. The e ight tests culminated in a successful landing of an F-16 with a simulated missing elevon.