TY - GEN
T1 - RESEARCH ON GRATING LOBE SUPPRESSION TECHNOLOGY OF STEPPED FREQUENCY CHIRP SIGNAL
AU - Ma, Yiming
AU - Xie, Xin
AU - Liu, Fuqiang
AU - Tian, Weiming
N1 - Publisher Copyright:
© 2020 IET Conference Proceedings. All rights reserved.
PY - 2020
Y1 - 2020
N2 - Stepped frequency chirp signal (SFCS) will inevitably introduce grating lobes during wideband synthesis processing, and system components as well as connection lines will introduce errors in the signal generation process. These errors will cause the grating lobes to deteriorate, making weak targets possible covered by grating lobes. To solve this problem, this paper first discusses the influence of waveform parameters on the grating lobe level, and then proposes the method of estimating the intra-pulse and inter-pulse magnitude error and phase error (MEPE) based on strong scattering point echoes, and conducting error compensation to achieve the purpose of grating lobe suppression (GLS). Both the simulation experiment and the processing results of the collected data by P-band uninhabited aerial vehicle radar verify the method.
AB - Stepped frequency chirp signal (SFCS) will inevitably introduce grating lobes during wideband synthesis processing, and system components as well as connection lines will introduce errors in the signal generation process. These errors will cause the grating lobes to deteriorate, making weak targets possible covered by grating lobes. To solve this problem, this paper first discusses the influence of waveform parameters on the grating lobe level, and then proposes the method of estimating the intra-pulse and inter-pulse magnitude error and phase error (MEPE) based on strong scattering point echoes, and conducting error compensation to achieve the purpose of grating lobe suppression (GLS). Both the simulation experiment and the processing results of the collected data by P-band uninhabited aerial vehicle radar verify the method.
KW - GRATING LOBE SUPPRESSION
KW - MAGNITUDE ERROR AND PHASE ERROR
KW - STEPPED FREQUENCY CHIRP SIGNALS
KW - WAVEFORM PARAMETER
UR - http://www.scopus.com/inward/record.url?scp=85144820589&partnerID=8YFLogxK
U2 - 10.1049/icp.2021.0782
DO - 10.1049/icp.2021.0782
M3 - Conference contribution
AN - SCOPUS:85144820589
VL - 2020
SP - 122
EP - 127
BT - IET Conference Proceedings
PB - Institution of Engineering and Technology
T2 - 5th IET International Radar Conference, IET IRC 2020
Y2 - 4 November 2020 through 6 November 2020
ER -