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/?i=6507
 
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 

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