Title :
A new method for analyzing the quantization effect of ADC in broadband QAM receiver
Author :
Shen, Bo ; Zhang, Qian-ling
Author_Institution :
ASIC & Syst. State Key Lab., Fudan Univ., Shanghai, China
fDate :
29 June-1 July 2002
Abstract :
This paper proposes a new method which analyzing the relationship between the bit-precision of an analog to digital converter (ADC) and the bit error rate (BER) performance in a broadband QAM demodulator. Through analyzing the quantization effect of the ADC on the SNR in the slicer, we get an analytical expression between ADC bit precision and SNR loss. The results of computer simulation match the theoretic analysis fairly well.
Keywords :
demodulators; electronic engineering computing; error statistics; quadrature amplitude modulation; quantisation (signal); radio receivers; BER; SNR ADC quantization effects; analog to digital converter bit-precision; broadband QAM demodulator bit error rate; broadband QAM receivers; quadrature amplitude modulation; slicer SNR losses; Bit error rate; Demodulation; Filters; Frequency; Performance analysis; Quadrature amplitude modulation; Quantization; RF signals; Receivers; Signal to noise ratio;
Conference_Titel :
Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on
Print_ISBN :
0-7803-7547-5
DOI :
10.1109/ICCCAS.2002.1179012
