Hey, I am doing a project with a topic of Electrical Appliance signature identification by using RF method!

Every electrical appliances emits it's own and unique signal when it consumed energy. I would like to capture and record the signature of electrical appliances This project is more towards signal processing where the recorded signature will be processed and analysed to be used with classifiers to classify the source of the signal which is hope in turn will identify the appliance being used.
My project is sensing the RF generated by appliances, radiated through free space. By using the signature , I can determine the classification of appliance whether the devide is on or off.

Active loop antenna (model 6507)- Range:1Khz-30Mhz
http://www.ets-lindgren.com/page/?ie07

Spectrum Analyzer -range: 9Khz-1.5Ghz

The active loop antenna was connected with spectrum analyzer.
The antenna was used to measured the signal emitted from a blender.

so far, I am able to capture the waveform of the blender when it turn on.

Two different blenders was tested and two different type signals was captured on spectrum analyzer. By using this signal, I have no idea of how to analyze it as unique feature of blender.
Analyze it by using fourier tranform? or any else?

For the signal analysis and classification of the appliance, what is the next step or method that I can used to analyse the waveform from the spectrum analyzer?

For the electrical appliances identification, is it the fuzzy logic or neural network need to be used?

Any expect here can give me some help???? Thanks Start a New Thread