Title :
Stochastic analysis of bandpass delta-sigma modulator for passband signals
Author :
Chang, Tsung-Yuan ; Bibyk, Steven B.
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
Gaussian assumption for the input to the quantizer is the key to the stochastic analysis of ΔΣ modulator. Our studies show this assumption is also reasonable for bandpass ΔΣ systems when pass-band communication signals are applied. The analysis of quantization error based on this assumption is also performed. The results suggest adding a suitable amount of dither can help the power of quantization error to achieve its minimum value
Keywords :
delta-sigma modulation; quantisation (signal); stochastic processes; Gaussian assumption; bandpass delta-sigma modulator; dither; pass-band communication signals; quantization error; stochastic analysis; Delta modulation; Passband; Performance analysis; Power system modeling; Quantization; Random processes; Signal analysis; Signal processing; Stochastic processes; Stochastic systems;
Conference_Titel :
Circuits and Systems, 1998. Proceedings. 1998 Midwest Symposium on
Conference_Location :
Notre Dame, IN
Print_ISBN :
0-8186-8914-5
DOI :
10.1109/MWSCAS.1998.759434
