Wavelet Neural Networks Approach for Dynamic Measuring Error Decomposition
Combining the time-frequency location and multiple-scale analysis of wavelet transform with the nonlinear mapping and self-learning of neural networks, an error decomposition method in dynamic measuring system is proposed. According to whole-system dynamic accuracy theory, the whole-error model of dynamic measuring system is given, and then the whole-error is decomposed into sub-errors by wavelet neural networks, which are traced so that units of the system are found which generate these errors and error transmission characteristic is controlled.
KeywordsWavelet Packet Wavelet Neural Network Error Trace Error Decomposition Decomposed Signal
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