Thanx Marcus and Tom fr ur explanations. I will read further and ask any
questions if i have.
Hi Tom,
As hilbert transform is a high-pass filter which only allows the
positive frequency components.And we know that only a complex signal
can have a single sided spectrum,not a real signal.So, i am still
confused that why the signal isn’t showing any imaginary part??May b i
am not understanding fully…
On Mon, Aug 18, 2014 at 11:22 AM, jason sam [email protected] wrote:
Hi Tom,
As hilbert transform is a high-pass filter which only allows the
positive frequency components.And we know that only a complex signal
can have a single sided spectrum,not a real signal.So, i am still
confused that why the signal isn’t showing any imaginary part??May b i
am not understanding fully…
Not sure. I think you definitely understand the concept. By removing the
negative frequencies, you /must/ add an imaginary part to the complex
signal. Basically, the Hilbert, as you understand, essentially just adds
the appropriate imaginary part.
I just tried your example, and things looked fine for me:
Tom