Fuzzy-logic-based guidance law design for missile systems

Presents the design of fuzzy-logic-based command to line-of-sight (CLOS) guidance law. In the presented design, the fuzzy inference rules are constructed in terms of polar coordinate parameters and their fuzzy associated memories (FAM) are trained by an adaptive-network-based fuzzy inference system (ANFIS). An online tuning algorithm is also proposed to adjust the FAM based on the missile attitude to eradicate the coupling effect. Simulation results demonstrate that the proposed fuzzy-logic-based CLOS guidance law can achieve satisfactory performance with small miss-distance