Let's say we have a wave that is made up of 3 sine waves all at different frequencies. It would be easy to figure out what those 3 original sine waves were by either basic observation, or trial and error. My question in regards to this though, is there a surefire way to retrieve the original building blocks (the 3 original sine waves) from the resulting wave?
Could the suggested method be used to find the building blocks (original sine waves) of a wave built up of n sine waves? Or is solution dependant on n. Ie. 0+1^2+2^2+3^2+...+n^2.
All help is appreciated.