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Linear Delta Modulator & Demodulator

by Szekit Chan

 

25 Apr 2005 (Updated 27 Apr 2005)

A sinusoid is modulated and then demodulated by linear delta modulator and demodulator.

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Description

A simple model of a linear delta modulator and demodulator is presented. A sinusoid is used as an input to the modulator and a delayed version of the same sinusoid is presented at the output of the demodulator.

In delta modulation, a continuous signal is sampled at t=n and compared against with the previous sample at t=[n-1]. The difference (+/-) is fed to a one-bit quantizer outputting either an 1 or 0. For the sake of simplificity, no encoder/decoder are included in this model. The bits can be demodulated by an accumulator followed by a low-pass filter.

Required Products Communications Blockset
MATLAB release MATLAB 7 (R14)
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Comments and Ratings (15)
19 Jun 2005 miguel hachiri  
26 Sep 2005 bontha reddy

i like to know new product of your

27 Dec 2005 Alex Salnikov  
12 Feb 2006 adi dina  
12 Mar 2006 Armando Brocas

Ok good work isn“t it?

26 Apr 2006 edu afa  
04 Oct 2006 vijay coumar

hi

06 Nov 2006 MIKE DELE  
25 Nov 2006 maker mart  
13 Feb 2007 GOODWILL NAMBAYA

I REALLY APPRECIATE

01 Mar 2007 seda seda  
05 Apr 2007 ahmed sami

misr

25 Aug 2007 Mr Tran  
24 Nov 2007 islam el-ghitany  
20 Feb 2009 bekir

can you send me the files codes please

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Tag Activity for this File
Tag Applied By Date/Time
wireless Szekit Chan 22 Oct 2008 07:47:19
delta modulator Szekit Chan 22 Oct 2008 07:47:19
delta demodulator Szekit Chan 22 Oct 2008 07:47:19
delta demodulator aqsa malik 12 May 2010 11:54:09
delta modulator hasan sami 26 Nov 2011 12:18:12

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