TY - GEN
T1 - Reconstruction strategy for bandwidth-interleaved acquisition system with overlapping band
AU - Zhao, Yu
AU - Ye, Peng
AU - Yang, Kuojun
AU - Meng, Jie
AU - Gao, Jian
AU - Wei, Wentao
AU - Song, Jinpeng
AU - Zhou, Yi
N1 - Publisher Copyright:
© 2019 IEEE
PY - 2019
Y1 - 2019
N2 - A novel mismatch correction strategy is proposed for bandwidth-interleaved (BI) acquisition system with overlapping band. In the proposed strategy, mismatch errors due to the nonuniformity among different subbands are considered as phase misalignment and magnitude distortion, which are estimated and corrected separately. Taking advantage of the characteristics of overlapping band, phase misalignment is estimated by homomor-phic correlation analysis of the signal in the overlapping band and compensated before subband merging. Magnitude distortion is compensated by an FIR filter designed with frequency sampling method after subband merging. Compared with other conventional methods, this strategy can realize nearly perfect reconstruction (NPR) without transfer function to be known or any additional hardware. The proposed strategy has been validated via simulations of a BI system with 2GHz bandwidth.
AB - A novel mismatch correction strategy is proposed for bandwidth-interleaved (BI) acquisition system with overlapping band. In the proposed strategy, mismatch errors due to the nonuniformity among different subbands are considered as phase misalignment and magnitude distortion, which are estimated and corrected separately. Taking advantage of the characteristics of overlapping band, phase misalignment is estimated by homomor-phic correlation analysis of the signal in the overlapping band and compensated before subband merging. Magnitude distortion is compensated by an FIR filter designed with frequency sampling method after subband merging. Compared with other conventional methods, this strategy can realize nearly perfect reconstruction (NPR) without transfer function to be known or any additional hardware. The proposed strategy has been validated via simulations of a BI system with 2GHz bandwidth.
KW - Bandwidth-interleaved acquisition system
KW - Frequency sampling
KW - Ho-momorphic correlation analysis
KW - Nearly perfect reconstruction
UR - http://www.scopus.com/inward/record.url?scp=85066800201&partnerID=8YFLogxK
U2 - 10.1109/ISCAS.2019.8702476
DO - 10.1109/ISCAS.2019.8702476
M3 - Conference contribution
AN - SCOPUS:85066800201
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
BT - 2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019
Y2 - 26 May 2019 through 29 May 2019
ER -