Sensor noise and fault judging method based on sparse representation
A technology of sensor noise and sparse representation, applied in instruments and other directions, can solve the problem of sensor noise and inability to distinguish faults
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[0015] (1) Sparse representation has achieved significant development in the field of signals, showing many advantages, and is also widely used in various fields such as face recognition, image processing, and object tracking. The present invention adopts the method of sparse representation to distinguish sensor noise and fault, which can also obtain better results. In the present invention, the dictionary of sensor noise and fault samples is first constructed through training.
[0016] Based on the construction of the sensor noise and fault sample dictionary, it is to establish an over-complete set of all kinds of noise and fault representations in the working process of the sensor. When constructing the sensor noise and fault data set, the data set contains normal data, multi-type noise sample data and multi-type fault data, the present invention selects a certain number of sample data from each type of training data set to construct noise and A dictionary of failure sample...
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