hi! i want to demodulate AM signal with DSP...i found an article that says like this : demodulator is illustrated as decimation integration filter. It includes a multiplier portion and an integration/decimation portion. so can we demodulate AM using decimation method? and what is decimation integration filter? thank you...
Decimation for demodulation
Started by ●June 14, 2007
Reply by ●June 14, 20072007-06-14
On Thu, 14 Jun 2007 04:57:03 -0500, c1910 wrote:> hi! > i want to demodulate AM signal with DSP...i found an article that says > > like this : > > demodulator is illustrated as decimation integration filter. It includes a > > multiplier portion and an integration/decimation portion. > > so can we demodulate AM using decimation method? > and what is decimation integration filter? > > thank you...Surely a web search turned up something? It sounds like they're using synchronous AM demodulation, and following the synchronous demodulator (the multiplier) by a low-pass filter that operates by integrating then decimating. -- Tim Wescott Control systems and communications consulting http://www.wescottdesign.com Need to learn how to apply control theory in your embedded system? "Applied Control Theory for Embedded Systems" by Tim Wescott Elsevier/Newnes, http://www.wescottdesign.com/actfes/actfes.html
