TY - GEN
T1 - Amplitude and phase calibration of digital array radar using frequency stepped signals
AU - Liu, Haibo
AU - Jiang, Han
AU - Yang, Xiaoqian
AU - Wang, Junfu
PY - 2013
Y1 - 2013
N2 - The application of modulated stepped frequency signal in digital array radar is discussed based on the High-Resolution image algorithms. The effects of phase error in every singlechannel on high resolution range are analyzed, that is , the nonlinear increase in interpulse frequency will result in distorted main lobe and increased sidelobe, which affects the quality of radar imaging. Also, inconsistent slope characteristics and phase error between different channels will result in the shifting of pattern beam and increase of sidelobe, thereby affects the quality of the angle measurement. In this paper, linear fitting of the phase and adjustment of the slopes are carried. The simulation and experimental results have demonstrated the effectiveness of the method.
AB - The application of modulated stepped frequency signal in digital array radar is discussed based on the High-Resolution image algorithms. The effects of phase error in every singlechannel on high resolution range are analyzed, that is , the nonlinear increase in interpulse frequency will result in distorted main lobe and increased sidelobe, which affects the quality of radar imaging. Also, inconsistent slope characteristics and phase error between different channels will result in the shifting of pattern beam and increase of sidelobe, thereby affects the quality of the angle measurement. In this paper, linear fitting of the phase and adjustment of the slopes are carried. The simulation and experimental results have demonstrated the effectiveness of the method.
KW - Amplitude and phase compensation
KW - Modulated stepped frequency
KW - Slope characteristics
UR - http://www.scopus.com/inward/record.url?scp=84894563989&partnerID=8YFLogxK
U2 - 10.1049/cp.2013.0401
DO - 10.1049/cp.2013.0401
M3 - Conference contribution
AN - SCOPUS:84894563989
SN - 9781849196031
T3 - IET Conference Publications
BT - IET International Radar Conference 2013
T2 - IET International Radar Conference 2013
Y2 - 14 April 2013 through 16 April 2013
ER -