Title :
A comparative study of complex multiple-band noise-shaping sigma-delta modulators for multi-tone input signals
Author :
Al-Janabi, Mohammed ; Kale, Izzet ; Morling, Richard C S
Author_Institution :
Dept. of Electron. Syst., Univ. of Westminster, UK
Abstract :
This paper presents a comparative study of complex single-bit and multi-bit sigma-delta modulators that are capable of providing concurrent multiple-band noise-shaping for multi-tone narrow-band input signals. The concepts applied for the three design methodologies are based on the noise transfer functions of complex comb, complex slink and complex multi-notch filters
Keywords :
comb filters; notch filters; sigma-delta modulation; transfer functions; complex comb; complex multi-notch filters; complex multiple-band noise-shaping sigma-delta modulators; complex slink; design methodologies; multi-bit modulators; multi-tone input signals; narrow-band input signals; noise transfer functions; single-bit modulators; Delta-sigma modulation; Digital modulation; Filters; Frequency conversion; Indium phosphide; Narrowband; Noise shaping; Quantization; Topology; Transfer functions;
Conference_Titel :
Circuits and Systems, 1999. 42nd Midwest Symposium on
Conference_Location :
Las Cruces, NM
Print_ISBN :
0-7803-5491-5
DOI :
10.1109/MWSCAS.1999.867302
