TY - GEN
T1 - Low cost least squares optimization method for sub-nyquist rate two-phase holding digital-to-analog conversion
AU - Wang, Boyuan
AU - Ma, Zhifeng
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/5
Y1 - 2019/5
N2 - In this paper, a low cost least squares optimization method for sub-Nyquist rate output of a two-phase holding (TPH) DAC is proposed. The pseudoinverse matrix of the TPH mode DAC reconstruction matrix is analyzed, and based on the analysis, a direct data manipulation method is proposed to replace matrix operations for reducing the computational complexity. The proposed least squares optimization method is able to improve the spurious free dynamic range by suppressing unwanted signals inside the bandwidth of interest. Simulation results show that the computational complexity can be reduced by six orders of magnitude.
AB - In this paper, a low cost least squares optimization method for sub-Nyquist rate output of a two-phase holding (TPH) DAC is proposed. The pseudoinverse matrix of the TPH mode DAC reconstruction matrix is analyzed, and based on the analysis, a direct data manipulation method is proposed to replace matrix operations for reducing the computational complexity. The proposed least squares optimization method is able to improve the spurious free dynamic range by suppressing unwanted signals inside the bandwidth of interest. Simulation results show that the computational complexity can be reduced by six orders of magnitude.
KW - Digital-to-analog conversion
KW - Least squares optimization
KW - Sub-nyquist rate
UR - http://www.scopus.com/inward/record.url?scp=85073103540&partnerID=8YFLogxK
U2 - 10.1109/ELTECH.2019.8839359
DO - 10.1109/ELTECH.2019.8839359
M3 - Conference contribution
AN - SCOPUS:85073103540
T3 - 2019 2nd International Conference on Electronics Technology, ICET 2019
SP - 94
EP - 98
BT - 2019 2nd International Conference on Electronics Technology, ICET 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd IEEE International Conference on Electronics Technology, ICET 2019
Y2 - 10 May 2019 through 13 May 2019
ER -