Mendeley
TY  _  JOUR
ID  -  1394090412021530
TI  -  ECG Signal Handling, Using Differential Pulse Code Modulation Scheme
JO  -  Nashriyyah -i Muhandisi -i Barq va Muhandisi -i Kampyutar -i Iran
JA  -  ES
LA  -  fa
SN  -  16823745
AU  -  Bahar H. B.
AU  -  Khiabani Y. S.
AD  -  دانشگاه تبريز
AD  -  دانشگاه تبريز
Y1  -  2009
PY  -  2009
VL  -  4
IS  -  
SP  -  329
EP  -  333
KW  -  DPCM 
predictor
quantizer
ECG signal
MSE
DO  -  
N2  -  Differential pulse code modulation (DPCM) system plays an important role in communication systems. In this paper a considerable amount of theoretical analysis has been carried out on DPCM structure, degree of predictor and quantizer unit. Simulation has been done using DPCM scheme. Here, instead of direct coding of signal, difference between two signals, input to DPCM and estimated output, is encoded. Consequently, application of the difference signal to quantizer unit, fewer bits for each sample is achieved at the output of the quantizer unit. In this study, Levinson-Durbin algorithm is utilized to design the optimal predictor. For the optimal quantized levels, classical together with Lloyd method are employed. Finally, second order predictor together with optimal quantized levels, 2-bit for normal case and 3-bit for optimal case, is successfully achieved to process ECG signal at DPCM scheme.
UR  - rimag.ir/en/Article/27965
L1  - rimag.ir/en/Article/Download/27965
ER  -  
