TY - GEN
T1 - A Time-Domain Image Formation for High Frame Rate UAV Swarm SAR
AU - Fang, Zhihao
AU - Li, Zhongyu
AU - Mao, Xinyu
AU - Yang, Yu
AU - Wu, Junjie
AU - Yang, Jianyu
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - Multistatic SAR based on unmanned aerial vehicles (UAV) swarm can simultaneously obtain the echo of the target from different perspectives. Thus it can synthesize a large aperture in a short time, realizing high resolution and high frame rate imaging of interested areas. But there is few imaging method for high frame rate UAV swarm SAR and the problem of over-lapping apertures affecting imaging quality remains to be re-solved. Therefore, this paper proposes a time-domain imaging method to solve the problems. Firstly, echo model of UAV swarm SAR is established and multistatic equivalent aperture distribution is analyzed. Then the echo is equalized to im-prove image quality. Next, coarse angular resolution images of each bistatic SAR pair in UAV swarm SAR is accurately formed. Finally, all bistatic images are recursively fused to get the final result. Simulation results verify the effectiveness and accuracy of the proposed method.
AB - Multistatic SAR based on unmanned aerial vehicles (UAV) swarm can simultaneously obtain the echo of the target from different perspectives. Thus it can synthesize a large aperture in a short time, realizing high resolution and high frame rate imaging of interested areas. But there is few imaging method for high frame rate UAV swarm SAR and the problem of over-lapping apertures affecting imaging quality remains to be re-solved. Therefore, this paper proposes a time-domain imaging method to solve the problems. Firstly, echo model of UAV swarm SAR is established and multistatic equivalent aperture distribution is analyzed. Then the echo is equalized to im-prove image quality. Next, coarse angular resolution images of each bistatic SAR pair in UAV swarm SAR is accurately formed. Finally, all bistatic images are recursively fused to get the final result. Simulation results verify the effectiveness and accuracy of the proposed method.
KW - UAV swarm
KW - high frame rate imaging
KW - multistatic SAR
UR - https://www.scopus.com/pages/publications/85140355745
U2 - 10.1109/IGARSS46834.2022.9883639
DO - 10.1109/IGARSS46834.2022.9883639
M3 - 会议稿件
AN - SCOPUS:85140355745
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 2506
EP - 2509
BT - IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2022
Y2 - 17 July 2022 through 22 July 2022
ER -