TY - JOUR
T1 - Correction algorithm of migration through resolution cells in bistatic ISAR of maneuvering target
AU - Guo, Baofeng
AU - Shang, Chaoxuan
AU - Gao, Meiguo
AU - Wang, Junling
AU - Jiang, Hongwei
PY - 2014/7/1
Y1 - 2014/7/1
N2 - When the size of target is big or the rotation angle is big, migration through resolution cells (MTRC) may occur when employing range-Doppler imaging algorithm in inverse synthetic aperture radar (ISAR), which can affect the imaging quality. Aiming at the problem of MTRC, the echo after dechirping is researched based on bistatic ISAR turntable model. And the cause of MTRC is analyzed. The match Fourier transform(MFT) is used to correct MTRC, which can eliminate the coupling of fast frequency, slow time and solve the image defocusing problem caused by MTRC. Simulation result shows that the correction algorithm based on MFT can correct the MTRC of maneuvering target and improve the image quality.
AB - When the size of target is big or the rotation angle is big, migration through resolution cells (MTRC) may occur when employing range-Doppler imaging algorithm in inverse synthetic aperture radar (ISAR), which can affect the imaging quality. Aiming at the problem of MTRC, the echo after dechirping is researched based on bistatic ISAR turntable model. And the cause of MTRC is analyzed. The match Fourier transform(MFT) is used to correct MTRC, which can eliminate the coupling of fast frequency, slow time and solve the image defocusing problem caused by MTRC. Simulation result shows that the correction algorithm based on MFT can correct the MTRC of maneuvering target and improve the image quality.
KW - Bistatic
KW - Inverse synthetic aperture radar
KW - Maneuvering target
KW - Match Fourier transform
KW - Migration through resolution cells
UR - http://www.scopus.com/inward/record.url?scp=84907088298&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84907088298
SN - 1004-9037
VL - 29
SP - 562
EP - 569
JO - Shuju Caiji Yu Chuli/Journal of Data Acquisition and Processing
JF - Shuju Caiji Yu Chuli/Journal of Data Acquisition and Processing
IS - 4
ER -