A GM (1, 1) Markov Chain-Based Aeroengine Performance Degradation Forecast Approach Using Exhaust Gas Temperature

<table>: The forecast values by GM (1, 1) model and GM (1, 1) Markov chain model for EGTM.</table>

Mathematical Problems in Engineering

Figure 9: A GM (1, 1) Markov Chain-Based Aeroengine Performance Degradation Forecast Approach Using Exhaust Gas Temperature 