Newbie : Quadrature processingThis is a discussion on Newbie : Quadrature processing within the DSP forums in Other Technologies category; Hi all , I am new to DSP and am trying to get my fundamentals clear about quadrature processing. I am looking at working and preexistent BPSK mod/demod code which uses cos(theta) to encode 1 and -cos(theta) to encode 0. After down conversion the code looks at only the imaginary part of of the data to decode a 0 or 1. I understand the the real part is always zero. But I dont the science. I have read books about Qadrature processign but non has cleared all the gray areas. I am hoping I can get some help from gurus ... | ||||||||
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#1
08-22-2008, 09:59 AM
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 Newbie : Quadrature processing Hi all , I am new to DSP and am trying to get my fundamentals clear about quadrature processing. I am looking at working and preexistent BPSK mod/demod code which uses cos(theta) to encode 1 and -cos(theta) to encode 0. After down conversion the code looks at only the imaginary part of of the data to decode a 0 or 1. I understand the the real part is always zero. But I dont the science. I have read books about Qadrature processign but non has cleared all the gray areas. I am hoping I can get some help from gurus at comp.dsp. BR Rate  |
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#2
09-01-2008, 06:59 PM
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| Re: Newbie : Quadrature processing On Fri, 22 Aug 2008 06:59:13 -0700 (PDT), ratemonotonic <niladri1979@gmail.com> wrote: >Hi all , > >I am new to DSP and am trying to get my fundamentals clear about >quadrature processing. I am looking at working and preexistent BPSK >mod/demod code which uses cos(theta) to encode 1 and -cos(theta) to >encode 0. After down conversion the code looks at only the imaginary >part of of the data to decode a 0 or 1. I understand the the real part >is always zero. > > But I dont the science. I have read books about Qadrature processign >but non has cleared all the gray areas. > >I am hoping I can get some help from gurus at comp.dsp. > >BR Hello BR, maybe the tutorial at: http://www.dspguru.com/info/tutor/QuadSignals.pdf will be of some help to you. Who knows. [-Rick-] >Rate |
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