Title :
Rational cycle decoding algorithm for the first-order delta-sigma modulator
Author :
Dachselt, Frank ; Götz, Marco
Author_Institution :
Fac. of Electr. Eng., Tech. Univ. Dresden, Germany
Abstract :
This paper addresses the problem of optimal decoding of delta-sigma modulator output sequences. We introduce the idea of rational cycles and design a novel nonlinear block decoding algorithm for the first-order delta-sigma modulator. We compare the performance of this algorithm with that of a simple linear and a nonlinear decoding scheme and show that the new algorithm outperforms them in almost all situations
Keywords :
delta-sigma modulation; filtering theory; nonlinear codes; nonlinear filters; rational functions; sequential decoding; code sequence; finite-length decoding; first-order delta-sigma modulator; nonlinear block decoding algorithm; optimal decoding; output sequences; rational cycle decoding algorithm; single module integrator; zoomer algorithm; Algorithm design and analysis; Decoding; Delta modulation; Ear; Filtering algorithms; Filtering theory; Noise reduction; Noise shaping; Stability; Very large scale integration;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921193
