TY - JOUR
T1 - Eliminating the impacts of flicker noise and DC offset in zero-IF architecture pulse compression radars
AU - Salamin, Yannick
AU - Pan, Jingnan
AU - Wang, Zhiyu
AU - Tang, Shuangtian
AU - Wang, Jian
AU - Li, Changzhi
AU - Ran, Lixin
PY - 2014/4
Y1 - 2014/4
N2 - Flicker noise and dc offset have strong impacts on the performance of zero-IF receivers. In this paper, we propose a generalized approach to eliminate such impacts on zero-IF architecture pulse compression radars (PCRs). The conventional low-pass filter in a zero-IF receiver is replaced with a predefined filter (PDF) to filter out the dc and low-frequency components from the demodulated radar signal. Simulation and experimental results demonstrate that, based on the prior knowledge of the radar signal and the PDF, the performance degradation, due to the complete filtering of the low-frequency components, can be recovered through a newly deduced compensation equation. Our approach can be widely used in the implementation of highly integrated high-performance PCR systems in the future.
AB - Flicker noise and dc offset have strong impacts on the performance of zero-IF receivers. In this paper, we propose a generalized approach to eliminate such impacts on zero-IF architecture pulse compression radars (PCRs). The conventional low-pass filter in a zero-IF receiver is replaced with a predefined filter (PDF) to filter out the dc and low-frequency components from the demodulated radar signal. Simulation and experimental results demonstrate that, based on the prior knowledge of the radar signal and the PDF, the performance degradation, due to the complete filtering of the low-frequency components, can be recovered through a newly deduced compensation equation. Our approach can be widely used in the implementation of highly integrated high-performance PCR systems in the future.
KW - DC offset
KW - flicker noise
KW - pulse compression radar (PCR)
KW - zero-IF receiver
UR - http://www.scopus.com/inward/record.url?scp=84898423977&partnerID=8YFLogxK
U2 - 10.1109/TMTT.2014.2307832
DO - 10.1109/TMTT.2014.2307832
M3 - Article
AN - SCOPUS:84898423977
VL - 62
SP - 879
EP - 888
JO - IEEE Transactions on Microwave Theory and Techniques
JF - IEEE Transactions on Microwave Theory and Techniques
SN - 0018-9480
IS - 4
M1 - 6755581
ER -