The Hilbert transform of a sine wave is an inverted cos wave, right?
Hilbert transform of a sine wave is an inverted cos wave, right?
Started by ●February 25, 2008
Reply by ●February 25, 20082008-02-25
"maxplanck" <erik.bowen@comcast.net> wrote in news:2cWdnWMVW8B29V7anZ2dnUVZ_qCunZ2d@giganews.com:> The Hilbert transform of a sine wave is an inverted cos wave, right? >No. sin(wt) is not the same as -cos(wt). Al Clark Danville Signal Processing, Inc.
Reply by ●February 25, 20082008-02-25
Al Clark wrote:> "maxplanck" <erik.bowen@comcast.net> wrote in > news:2cWdnWMVW8B29V7anZ2dnUVZ_qCunZ2d@giganews.com: > >> The Hilbert transform of a sine wave is an inverted cos wave, right? >> > > No. > > sin(wt) is not the same as -cos(wt).I would hope that is the case. If they were the same, a Hilbert transform would be rather a waste of time, wouldn't it? :-\ Steve
Reply by ●February 26, 20082008-02-26
Al Clark wrote:> "maxplanck" <erik.bowen@comcast.net> wrote in > news:2cWdnWMVW8B29V7anZ2dnUVZ_qCunZ2d@giganews.com: > >> The Hilbert transform of a sine wave is an inverted cos wave, right? >> > > No. > > sin(wt) is not the same as -cos(wt).But Al, a Hilbert transform shifts phase 90 degrees. Depending on implementation, it can be either way. Maxboard wants to know which way. Jerry -- Engineering is the art of making what you want from things you can get. �����������������������������������������������������������������������
Reply by ●February 26, 20082008-02-26
On Feb 25, 8:18�pm, "maxplanck" <erik.bo...@comcast.net> wrote:> The Hilbert transform of a sine wave is an inverted cos wave, right?You will find all of the details here: http://www.claysturner.com/dsp/HilbertTransforms.pdf IHTH, Clay
Reply by ●February 26, 20082008-02-26
Reply by ●February 26, 20082008-02-26
On Feb 26, 1:07�pm, "maxplanck" <erik.bo...@comcast.net> wrote:> Please can someone just tell me what the hilbert transform of a sine wave > is?It is on the first page of the document I gave you a link to. Clay
Reply by ●February 27, 20082008-02-27
So, the hilbert transform of a sin wave IS an inverted cos wave Thanks!>On Feb 26, 1:07=A0pm, "maxplanck" <erik.bo...@comcast.net> wrote: >> Please can someone just tell me what the hilbert transform of a sinewave>> is? > >It is on the first page of the document I gave you a link to. > >Clay > >
Reply by ●March 8, 20082008-03-08
On Feb 26, 6:28�pm, c...@claysturner.com wrote:> On Feb 25, 8:18�pm, "maxplanck" <erik.bo...@comcast.net> wrote: > > > TheHilberttransformof a sine wave is an inverted cos wave, right? > > You will find all of the details here: > > http://www.claysturner.com/dsp/HilbertTransforms.pdf >Nice link :):) Karthik Balaguru