학술논문
An improved method on the performance of hybrid filter banks of ADC due to realization errors
Document Type
Conference
Author
Source
2008 9th International Conference on Signal Processing Signal Processing, 2008. ICSP 2008. 9th International Conference on. :1766-1770 Oct, 2008
Subject
Language
ISSN
2164-5221
2164-523X
2164-523X
Abstract
This paper studies the error of the hybrid filter banks (HFB) due to analog realization errors. It is shown that the architecture of HFB is much more sensitive to even small analog imperfections. Therefore, the performance of HFB has a dramatic deterioration. In order to improve the performance, a method named Central Frequency is presented. The results show that the value of max aliasing function the main restricting source of resolution in HFB ADC (analog-to-digital converter) decreases about 50dB. And the SNR (signal-to-noise ratio) of the whole system is enhanced above 30dB.