Re: Is the output of an analog filter real or the magnitude?


You and Bob Cain are obviously tied in the shit-for-brains contest. Like Bob Cain, you too need to ask for a refund on your engineering education, assuming that you claim to have received one. The question was "what do you get at the output of an ANALOG filter?" And....the answer is a REAL time signal. As a demonstration of the obvious, let me suggest that you get your hands on a cheap electret microphone, a filter and an oscilloscope. Connect the output of the mic to the filter and connect the output of the filter to the oscilloscope. Then shout "I am an idiot" into the microphone, while simulateously looking at the oscilloscope screen and yourself in a mirror. Now, if you want take the real time signal at the output of the analog filter and compute its magnitude (envelope) or its RMS value, or its average rectified value, you are certainly free to do so. But, the output of the analog filter is a REAL time signal.

Well, seems your father never did get round to smacking the stupid out of you as a child... If we're gonna start name-calling then I don't wanna be left out of throwing some round.

The definition or real and imaginary, or in-phase and quadrature, if you want to look those terms up in your inbred hickville hometown dictionary, is different to that you're referring to, and I made sure to point this out in my post, which it would seem you're too stupid to have read.

I noted that a 'real' measurement would measure the magnitude (sqrt(Re^2+Im^2)) of the output signal.

Of course if you're referring to the output of the filter being a real-time signal then that's something different again. Gee all these different engineering terms and you don't seem to know any of them, perhaps you should just f*%^ off!!!!

Sorry to the rest of the group for that, but I'm getting a bit annoyed at stupid posters like Radium and this guy.
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