Where can I find the MATLAB code for Principle Component Analysis and MLP ANN to carry out Fault Diagnosis in rotating machines?

I am working on the determination of unique vibration-based fault features in industrial rotating machines and basically looking to extract these fault features like Ku, Crest Factor, Mean, Standard Deviation etc. from machine time domain signals. As a part of this study, I am to conduct Principle Component Analysis for dimensionality reduction and then use a multi-layer perceptron ANN for pattern classification.

Since I am relatively new to MATLAB, I haven't yet been able to develop a source code that can perform PCA and then use results as inputs to ANN. Can anybody tell me where can I get some help on this?

Answer 1

[Greg Heath]

SEARCH both the NEWSGROUP and ANSWERS with the search words

 principal component analysis

Thank you for formally accepting my answer

Greg

Answer 2

[Aditya Baru]

Here are some examples (with code) that do exactly what you mentioned:

https://www.mathworks.com/help/predmaint/examples/wind-turbine-high-speed-bearing-prognosis.html https://www.mathworks.com/help/predmaint/examples/Rolling-Element-Bearing-Fault-Diagnosis.html https://www.mathworks.com/help/signal/examples/vibration-analysis-of-rotating-machinery.html

The first example also covers how PCA can be used to combine features