TY - GEN
T1 - DC offset and low frequency noise compensation for direct-conversion receiver in pulse compression radar
AU - Pan, Jingnan
AU - Wang, Zhiyu
AU - Tang, Shuangtian
AU - Wang, Jian
AU - Li, Changzhi
AU - Huangfu, Jiangtao
AU - Ran, Lixin
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011
Y1 - 2011
N2 - In this paper, we replace low-pass filter (LPF) in traditional direct-conversion receiver (DCR) in pulse compression radar (PCR) by pre-defined filter (PDF) to directly filter direct-current offset and low frequency noise. We also accordingly propose an algorithm for compensating the distance range resolution degradation caused by PDF's effect on low frequency components of received linear frequency modulation (LFM) signals. Based on the theoretical understanding on how the low frequency band influences the pulse compression, a set of newly deduced equations are used to calculate the compression, and the range resolution degradation can be recovered based on the priori knowledge of the employed LFM signal and filters. This method can be used in all pulse compression radars where pre-defined continuous radar signals are employed.
AB - In this paper, we replace low-pass filter (LPF) in traditional direct-conversion receiver (DCR) in pulse compression radar (PCR) by pre-defined filter (PDF) to directly filter direct-current offset and low frequency noise. We also accordingly propose an algorithm for compensating the distance range resolution degradation caused by PDF's effect on low frequency components of received linear frequency modulation (LFM) signals. Based on the theoretical understanding on how the low frequency band influences the pulse compression, a set of newly deduced equations are used to calculate the compression, and the range resolution degradation can be recovered based on the priori knowledge of the employed LFM signal and filters. This method can be used in all pulse compression radars where pre-defined continuous radar signals are employed.
UR - http://www.scopus.com/inward/record.url?scp=79957911413&partnerID=8YFLogxK
U2 - 10.1109/IWAT.2011.5752322
DO - 10.1109/IWAT.2011.5752322
M3 - Conference contribution
AN - SCOPUS:79957911413
SN - 9781424491339
T3 - Final Program and Book of Abstracts - iWAT 2011: 2011 IEEE International Workshop on Antenna Technology: Small Antennas, Novel Structures and Innovative Metamaterials
SP - 255
EP - 258
BT - Final Program and Book of Abstracts - iWAT 2011
Y2 - 7 March 2011 through 9 March 2011
ER -