A method of aircraft fuel consumption performance evaluation based on RELAX signal separation

The fuel consumption performance of aircraft affects the deployment capacity and profitability of airlines. This paper focus on building a reasonable exponential attenuation model of aircraft fuel consumption performance model based on the actual flight data. In consideration of the feature that the flying distance varies with fuel consumption performance, a RELAX-based algorithm is introduced with the method of Non-homogeneousness Detect to attempt to realize the separation and parameter estimation of each component of fuel consumption model. The CRB analysis of the experiment results proved the accuracy of the parameter estimation while the A330 flight data showed the effectiveness of the algorithm. Meanwhile, it provided a reference criterion for aircraft fuel consumption performance evaluation.