H ∞ Filter Design for Anti-skid Braking System for Fighter Aircraft

Abstract- Aircraft brake system plays a very important role in the safe takeoff and landing. On landing, skid phenomena is observed due to runway surfaces, pilot brake demand or due to other factors which creates unsafe for the aircraft while landing. So we use anti-skid braking system which will prevent tires from slipping extremely on the track and ensure aircraft landing safety and stability with maximum braking efficiency. Estimate of the slip is estimated using a technique called H ∞ filter design. The purpose of estimation is to make the slip, error free, from the noises coming out from the sensors and other measuring devices which affect the system parameters. This paper presents modeling and simulation part of the work for the aircraft brake system. Index Terms- µ-slip curve, slip-ratio, anti-skid, H ∞ filte