TY - GEN
T1 - Dual-frequency Motion Compensation for SISAR Imaging in Forward Scatter Radar
AU - Liu, Feifeng
AU - Liu, Changjiang
AU - Wang, Rui
AU - Hu, Cheng
N1 - Publisher Copyright:
© 2018 International Union of Radio Science URSI.
PY - 2018/9/24
Y1 - 2018/9/24
N2 - To solve the problem of motion compensation for accurate shadow inverse synthetic aperture radar (SISAR) imaging, an SISAR motion compensation algorithm based on dual-frequency is proposed. By conjugate multiplication of two echo signals with different carrier frequencies and different sampling rates, the influence of the scattering phase can be compensated and Doppler phase shift can be obtained by resolving recursive equations. Further, the Doppler variation rate at the baseline-crossing time is used as the initial value to solve the recursive equations. The simulation results show that this algorithm can give a more accurate SISAR contour image, the resolution of which has been greatly improved compared to that obtained by traditional SISAR motion compensation methods.
AB - To solve the problem of motion compensation for accurate shadow inverse synthetic aperture radar (SISAR) imaging, an SISAR motion compensation algorithm based on dual-frequency is proposed. By conjugate multiplication of two echo signals with different carrier frequencies and different sampling rates, the influence of the scattering phase can be compensated and Doppler phase shift can be obtained by resolving recursive equations. Further, the Doppler variation rate at the baseline-crossing time is used as the initial value to solve the recursive equations. The simulation results show that this algorithm can give a more accurate SISAR contour image, the resolution of which has been greatly improved compared to that obtained by traditional SISAR motion compensation methods.
UR - https://www.scopus.com/pages/publications/85055796160
U2 - 10.23919/URSI-AT-RASC.2018.8471326
DO - 10.23919/URSI-AT-RASC.2018.8471326
M3 - Conference contribution
AN - SCOPUS:85055796160
T3 - 2018 2nd URSI Atlantic Radio Science Meeting, AT-RASC 2018
BT - 2018 2nd URSI Atlantic Radio Science Meeting, AT-RASC 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd URSI Atlantic Radio Science Meeting, AT-RASC 2018
Y2 - 28 May 2018 through 1 June 2018
ER -