1. A fault detection system for detecting faults in a turbine engine, the fault detection system comprising: a kernel-based Maximum Representation Discrimination Features (OF) feature extractor, the kernel-based MRDF feature extractor receiving measured turbine sensor data from the turbine engine, the kernel-based MRDF feature extractor using a nonlinear kernel function to extract features indicative of nonlinear correlations in the sensor data; and a classifier, the classifier receiving the extracted features and classifying the extracted features to determine if a fault occurred in the turbine engine.