Title :
Discussion of SNR after sub-sampling of multiple bandpass signals
Author :
Yong, Huung ; Xinfu, Luan ; Xiao xianci
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, China
fDate :
June 29 2002-July 1 2002
Abstract :
Using a sub-sampling theorem of multiple bandpass signals and digital frequency conversion techniques, multi-band-pass signals can be directly sampled and processed. If the sampling rate is lower than twice the maximum frequency of the signal, the signal-to-noise ratio (SNR) will be worse. The relationships of SNR of the sampled signal, analog filter before analog-to-digital conversion and sampling rate are discussed. The results have some applications for digital receivers.
Keywords :
Butterworth filters; analogue-digital conversion; filtering theory; interference (signal); noise; signal sampling; Butterworth filter; SNR; analog filter; analog-to-digital conversion; multiple band-pass signals; signal processing; signal sampling; signal-to-noise ratio; sub-sampling theorem; Analog-digital conversion; Bandwidth; Data systems; Digital filters; Equations; Sampling methods; Signal processing; Signal sampling; Signal to noise ratio; Transfer functions;
Conference_Titel :
Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on
Conference_Location :
Chengdu, China
Print_ISBN :
0-7803-7547-5
DOI :
10.1109/ICCCAS.2002.1178944
